Sorry I cannot be more specific but I am willing to keep looking

Thank you, Jephree.

I used debugwiz on the portcls.sys error:

Opened log file 'c:\debuglog.txt'

Microsoft (R) Windows Debugger Version 6.6.0003.5
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\WINDOWS\Minidump\Mini050406-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: C:\WINDOWS;C:\WINDOWS\system32;C:\WINDOWS\system32 \drivers
Windows XP Kernel Version 2600 (Service Pack 2) UP Free x86 compatible
Product: WinNt
Built by: 2600.xpsp_sp2_gdr.050301-1519
Kernel base = 0x804d7000 PsLoadedModuleList = 0x8055a420
Debug session time: Thu May 4 18:30:15.218 2006 (GMT-4)
System Uptime: 0 days 1:39:50.805
Loading Kernel Symbols
.................................................. .................................................. ...................
Loading User Symbols
Loading unloaded module list
............
************************************************** *****************************
* *
* Bugcheck Analysis *
* *
************************************************** *****************************

Use !analyze -v to get detailed debugging information.

BugCheck D1, {86dfd1d8, 2, 0, f6878a2f}

Unable to load image \SystemRoot\system32\drivers\portcls.sys, Win32 error 2
*** WARNING: Unable to verify timestamp for portcls.sys
*** ERROR: Module load completed but symbols could not be loaded for portcls.sys
Probably caused by : portcls.sys ( portcls+3a2f )

Followup: MachineOwner
---------

kd> !analyze -v;r;kv;lmtn;.logclose;q
************************************************** *****************************
* *
* Bugcheck Analysis *
* *
************************************************** *****************************

DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high. This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.
Arguments:
Arg1: 86dfd1d8, memory referenced
Arg2: 00000002, IRQL
Arg3: 00000000, value 0 = read operation, 1 = write operation
Arg4: f6878a2f, address which referenced memory

Debugging Details:
------------------


READ_ADDRESS: 86dfd1d8

CURRENT_IRQL: 2

FAULTING_IP:
portcls+3a2f
f6878a2f ?? ???

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: DRIVER_FAULT

BUGCHECK_STR: 0xD1

LAST_CONTROL_TRANSFER: from f6878a2f to 804e187f

STACK_TEXT:
805500d4 f6878a2f badb0d00 00000002 865ab2a8 nt!KiTrap0E+0x233
WARNING: Stack unwind information not available. Following frames may be wrong.
80550144 00000000 00000000 85645698 00000b10 portcls+0x3a2f


STACK_COMMAND: .bugcheck ; kb

FOLLOWUP_IP:
portcls+3a2f
f6878a2f ?? ???

SYMBOL_STACK_INDEX: 1

FOLLOWUP_NAME: MachineOwner

SYMBOL_NAME: portcls+3a2f

MODULE_NAME: portcls

IMAGE_NAME: portcls.sys

DEBUG_FLR_IMAGE_TIMESTAMP: 0

FAILURE_BUCKET_ID: 0xD1_portcls+3a2f

BUCKET_ID: 0xD1_portcls+3a2f

Followup: MachineOwner
---------

eax=ffdff13c ebx=00000002 ecx=00000000 edx=40000000 esi=f6878a2f edi=86dfd1d8
eip=804e187f esp=805500bc ebp=805500d4 iopl=0 nv up ei ng nz na po nc
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00000286
nt!KiTrap0E+0x233:
804e187f f7457000000200 test dword ptr [ebp+0x70],0x20000 ss:0010:80550144=00010282
ChildEBP RetAddr Args to Child
805500d4 f6878a2f badb0d00 00000002 865ab2a8 nt!KiTrap0E+0x233 (FPO: [0,0] TrapFrame @ 805500d4)
WARNING: Stack unwind information not available. Following frames may be wrong.
80550144 00000000 00000000 85645698 00000b10 portcls+0x3a2f
start end module name
804d7000 806eb100 nt ntoskrnl.exe Tue Mar 01 19:59:37 2005 (42250FF9)
806ec000 8070c380 hal halaacpi.dll Wed Aug 04 01:59:05 2004 (41107B29)
a7f6d000 a7f97000 Unknown_Module_a7f6d000 Unknown_Module_a7f6d000 unavailable (00000000)
a80af000 a80f0000 Unknown_Module_a80af000 Unknown_Module_a80af000 unavailable (00000000)
a8398000 a83ea000 srv srv.sys unavailable (00000000)
a85ca000 a85f7000 mrxdav mrxdav.sys unavailable (00000000)
a88f4000 a8909000 wdmaud wdmaud.sys unavailable (00000000)
a8a79000 a8a87d80 sysaudio sysaudio.sys Wed Aug 04 02:15:54 2004 (41107F1A)
a8c15000 a8c19000 ndisuio ndisuio.sys unavailable (00000000)
aac79000 aac91000 dump_atapi dump_atapi.sys unavailable (00000000)
aacb9000 aacca000 ______________________________________aacb9000 ????????????????????????????????????? unavailable (00000000)
aad6a000 aae28000 __________________________________________aad6a000 ????????????????????????????????????????? unavailable (00000000)
aae28000 aae49000 _______________________________________aae28000 ?????????????????????????????????????? unavailable (00000000)
aae49000 aaeb8000 ________________________________________aae49000 ??????????????????????????????????????? unavailable (00000000)
aaee0000 aaf0b000 rdbss rdbss.sys unavailable (00000000)
aaf0b000 aaf2d000 afd afd.sys unavailable (00000000)
aaf2d000 aaf55000 Unknown_Module_aaf2d000 Unknown_Module_aaf2d000 unavailable (00000000)
aaf55000 aafad000 __aaf55000 ? unavailable (00000000)
aafad000 aafc0000 ipsec ipsec.sys unavailable (00000000)
bf800000 bf9c1180 Unknown_Module_bf800000 Unknown_Module_bf800000 Wed Oct 05 20:05:44 2005 (43446A58)
bf9c2000 bf9d3580 dxg dxg.sys Wed Aug 04 02:00:51 2004 (41107B93)
bf9d4000 bfa17000 ati2dvag ati2dvag.dll Tue Mar 21 2242 2006 (4420CAFA)
bfa17000 bfa56000 ati2cqag ati2cqag.dll Tue Mar 21 22:12:22 2006 (4420C096)
bfa56000 bfa8c000 atikvmag atikvmag.dll Tue Mar 21 22:18:34 2006 (4420C20A)
bfa8c000 bfd16120 ati3duag ati3duag.dll Tue Mar 21 22:40:09 2006 (4420C719)
bfd17000 bfe2b100 ativvaxx ativvaxx.dll Tue Mar 21 22:33:39 2006 (4420C593)
f6768000 f679c000 ________________________________________f6768000 ??????????????????????????????????????? unavailable (00000000)
f679c000 f67ad000 _______________________________________ ??????????????????????????????????????? unavailable (00000000)
f67ad000 f67c4000 ndiswan ndiswan.sys unavailable (00000000)
f67c4000 f67d8000 _ ? unavailable (00000000)
f67d8000 f67fc000 e100b325 e100b325.sys unavailable (00000000)
f67fc000 f6822000 _________________________________________f67fc000 ???????????????????????????????????????? unavailable (00000000)
f6822000 f6852000 ________________________________________ ???????????????????????????????????????? unavailable (00000000)
f6852000 f6875000 ks ks.sys unavailable (00000000)
f6875000 f6899000 portcls portcls.sys unavailable (00000000)
f6899000 f69ed000 P17 P17.sys unavailable (00000000)
f69ed000 f6a10000 USBPORT USBPORT.SYS unavailable (00000000)
f6a10000 f6a24000 VIDEOPRT VIDEOPRT.SYS unavailable (00000000)
f6a24000 f6ba7000 ati2mtag ati2mtag.sys Tue Mar 21 2221 2006 (4420CAE5)
f6bd9000 f6be1a00 processr processr.sys Wed Aug 04 01:59:14 2004 (41107B32)
f6bf9000 f6c01e40 SMBios SMBios.sys Thu Sep 11 18:20:22 2003 (3F60F526)
f6d89000 f6d8c000 Dxapi Dxapi.sys unavailable (00000000)
f7635000 f7639000 __________________________________________f7635000 ??????????????????????? unavailable (00000000)
f763d000 f7640000 _________________________________________ ????????????????????????????????????????? unavailable (00000000)
f7645000 f7649000 _________________________________________f7645000 ???????????
????Z????????????????????Z?? unavailable (00000000)
f7671000 f768b580 Mup Mup.sys Wed Aug 04 02:15:20 2004 (41107EF8)
f768c000 f76b8a80 NDIS NDIS.sys Wed Aug 04 02:14:27 2004 (41107EC3)
f76b9000 f7745480 Ntfs Ntfs.sys Wed Aug 04 02:15:06 2004 (41107EEA)
f7746000 f775c780 KSecDD KSecDD.sys Wed Aug 04 01:59:45 2004 (41107B51)
f775d000 f776ef00 sr sr.sys Wed Aug 04 02:06:22 2004 (41107CDE)
f776f000 f778d780 fltmgr fltmgr.sys Wed Aug 04 02:01:17 2004 (41107BAD)
f778e000 f77a5800 SCSIPORT SCSIPORT.SYS Wed Aug 04 01:59:39 2004 (41107B4B)
f77a6000 f77bd480 Unknown_Module_f77a6000 Unknown_Module_f77a6000 Wed Aug 04 01:59:41 2004 (41107B4D)
f77be000 f77dc880 ftdisk ftdisk.sys Fri Aug 17 16:52:41 2001 (3B7D8419)
f77dd000 f77eda80 pci pci.sys Wed Aug 04 02:07:45 2004 (41107D31)
f77ee000 f7813e00 d347bus d347bus.sys Sun Aug 22 09:31:09 2004 (4128A01D)
f7814000 f7841d80 ACPI ACPI.sys Wed Aug 04 02:07:35 2004 (41107D27)
f7863000 f786bc00 isapnp isapnp.sys Fri Aug 17 16:58:01 2001 (3B7D8559)
f7873000 f787d500 MountMgr MountMgr.sys Wed Aug 04 01:58:29 2004 (41107B05)
f7883000 f788fc80 VolSnap VolSnap.sys Wed Aug 04 02:00:14 2004 (41107B6E)
f7893000 f789be00 disk disk.sys Wed Aug 04 01:59:53 2004 (41107B59)
f78a3000 f78af200 CLASSPNP CLASSPNP.SYS Wed Aug 04 02:14:26 2004 (41107EC2)
f78b3000 f78bd580 agp440 agp440.sys Wed Aug 04 02:07:40 2004 (41107D2C)
f78f3000 f7902000 drmk drmk.sys unavailable (00000000)
f7903000 f7910000 i8042prt i8042prt.sys unavailable (00000000)
f7913000 f7923000 serial serial.sys unavailable (00000000)
f7923000 f792e000 imapi imapi.sys unavailable (00000000)
f7933000 f7940000 cdrom cdrom.sys unavailable (00000000)
f7943000 f7952000 _________________________________________f7943000 ???????????????????????????????????????? unavailable (00000000)
f7953000 f7960000 _________________________________________f7953000 ???????????????????????????????????????? unavailable (00000000)
f7963000 f796e000 __________________________________________f7963000 ????????????????????????????????????????? unavailable (00000000)
f7973000 f797f000 raspptp raspptp.sys unavailable (00000000)
f7983000 f798c000 msgpc msgpc.sys unavailable (00000000)
f7993000 f799d000 Unknown_Module_f7993000 Unknown_Module_f7993000 unavailable (00000000)
f79d3000 f79dd000 NDProxy NDProxy.SYS unavailable (00000000)
f79e3000 f79f2000 Unknown_Module_f79e3000 Unknown_Module_f79e3000 unavailable (00000000)
f79f3000 f79fc000 _________________________________________f79f3000 ???????????????????????????????????????? unavailable (00000000)
f7a13000 f7a1c000 Unknown_Module_f7a13000 Unknown_Module_f7a13000 unavailable (00000000)
f7a23000 f7a2c000 ________________________________________f7a23000 ??????????????????????????????????????? unavailable (00000000)
f7a33000 f7a3c000 Unknown_Module_f7a33000 Unknown_Module_f7a33000 unavailable (00000000)
f7a43000 f7a53000 Unknown_Module_f7a43000 Unknown_Module_f7a43000 unavailable (00000000)
f7ae3000 f7ae9200 PCIIDEX PCIIDEX.SYS Wed Aug 04 01:59:40 2004 (41107B4C)
f7aeb000 f7aef900 PartMgr PartMgr.sys Fri Aug 17 21:32:23 2001 (3B7DC5A7)
f7b2b000 f7b30000 watchdog watchdog.sys unavailable (00000000)
f7beb000 f7bf0000 usbuhci usbuhci.sys unavailable (00000000)
f7bf3000 f7bfa000 usbehci usbehci.sys unavailable (00000000)
f7bfb000 f7c01000 kbdclass kbdclass.sys unavailable (00000000)
f7c03000 f7c0a000 ____________________________________________ ???????????????????????????????????????????? unavailable (00000000)
f7c0b000 f7c10000 TDI TDI.SYS unavailable (00000000)
f7c13000 f7c18000 _________________________________________f7c13000 ???????????????????????????????????????? unavailable (00000000)
f7c1b000 f7c20000 raspti raspti.sys unavailable (00000000)
f7c23000 f7c29000 __________________________________________f7c23000 ????????????????????????????????????????? unavailable (00000000)
f7c43000 f7c4a000 HIDPARSE HIDPARSE.SYS unavailable (00000000)
f7c4b000 f7c51000 vga vga.sys unavailable (00000000)
f7c53000 f7c58000 Unknown_Module_f7c53000 Unknown_Module_f7c53000 unavailable (00000000)
f7c5b000 f7c63000 Unknown_Module_f7c5b000 Unknown_Module_f7c5b000 unavailable (00000000)
f7c6b000 f7c72000 __________________________________________f7c6b000 ????????????????????????????????????????? unavailable (00000000)
f7c73000 f7c76000 BOOTVID BOOTVID.dll Fri Aug 17 16:49:09 2001 (3B7D8345)
f7d0b000 f7d0e000 ________________________________________f7d0b000 ??????????????????????????????????????? unavailable (00000000)
f7d37000 f7d3a000 ________________________________________f7d37000 ??????????????????????????????????????? unavailable (00000000)
f7d3b000 f7d3e000 ________________________________________f7d3b000 ??????????????????????????????????????? unavailable (00000000)
f7d3f000 f7d42000 Unknown_Module_f7d3f000 Unknown_Module_f7d3f000 unavailable (00000000)
f7d63000 f7d64b80 kdcom kdcom.dll Fri Aug 17 16:49:10 2001 (3B7D8346)
f7d65000 f7d66100 WMILIB WMILIB.SYS Fri Aug 17 17:07:23 2001 (3B7D878B)
f7d67000 f7d68480 d347prt d347prt.sys Sun Aug 22 09:31:48 2004 (4128A044)
f7d8d000 f7d8f000 ________________________________________f7d8d000 ??????????????????????????????????????? unavailable (00000000)
f7d93000 f7d95000 Unknown_Module_f7d93000 Unknown_Module_f7d93000 unavailable (00000000)
f7d97000 f7d99000 ________________________________________f7d97000 ??????????????????????????????????????? unavailable (00000000)
f7d99000 f7d9b000 ______________________________________f7d99000 ????????????????????????????????????? unavailable (00000000)
f7d9b000 f7d9d000 ______________________________________ ???????????????? unavailable (00000000)
f7d9d000 f7d9f000 ________________________________________f7d9d000 ??????????????????????????????????????? unavailable (00000000)
f7d9f000 f7da1000 Unknown_Module_f7d9f000 Unknown_Module_f7d9f000 unavailable (00000000)
f7db3000 f7db5000 dump_WMILIB dump_WMILIB.SYS unavailable (00000000)
f7de7000 f7de9000 ParVdm ParVdm.SYS unavailable (00000000)
f7e1d000 f7e1f000 ________________________________________f7e1d000 ????????????????????????????????????>?? unavailable (00000000)
f7e2b000 f7e2bd00 pciide pciide.sys Fri Aug 17 16:51:49 2001 (3B7D83E5)
f7e95000 f7e96000 _____________________________________ ????????????????????????????????????? unavailable (00000000)
f7eae000 f7eaf000 Unknown_Module_f7eae000 Unknown_Module_f7eae000 unavailable (00000000)
f7f7a000 f7f7b000 Unknown_Module_f7f7a000 Unknown_Module_f7f7a000 unavailable (00000000)
f7fb0000 f7fb1000 _________________________________________f7fb0000 ???????????????????????????????????????? unavailable (00000000)

Unloaded modules:
f7de9000 f7deb000 splitter.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
a88a7000 a88d1000 kmixer.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
f7f90000 f7f91000 drmkaud.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
a8a49000 a8a56000 DMusic.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
a88d1000 a88f4000 aec.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
a8a59000 a8a67000 swmidi.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
f7e19000 f7e1b000 splitter.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
f7a53000 f7a5f000 ATITool.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
f7a03000 f7a0c000 intelppm.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
f7d07000 f7d0b000 kbdhid.sys
Timestamp: unavailable (00000000)
Checksum: 00000000
f7c3b000 f7c40000 Cdaudio.SYS
Timestamp: unavailable (00000000)
Checksum: 00000000
f7d03000 f7d06000 Sfloppy.SYS
Timestamp: unavailable (00000000)
Checksum: 00000000
Closing open log file c:\debuglog.txt

Here are the unsigned drivers from Verifier:

avg7core.sys - AVG Scanning Engine
avg7rsw.sys - AVG Shield Resident Unload Helper
avg7rsxp.sys - AVG Resident Anti-Virus Shield
avgtdi.sys - AVG Network Connection Watcher
d347bus.sys - PnP BIOS Extension
d347prt.sys - SCSI Miniport
http.sys - HTTP Protocol Stack
smbios.sys - Intel(R) System Management BIOS Driver

Can you find f6878a2f in PSTAT?

Just a second...

Darn it, no. Closest one was f6878000 for ks.sys.

My portcls.sys is loaded at f6867 000

This might be just reaffirming portcls.sys

My portcls.sys is at F689B000.

Audio driver.

Broken?

Your audio driver tried to use the page file at an invalid address.

Your Page File is your hard drive storing Memory. So we are back to memory issues.

As a test you could try to stop your page file. This will put the entire load on your RAM.

Right click My Computer then click Properties then Advanced

Performance > Settings > Advanced > Virtual Memory > Change

No Page File > Set & OK your way out.

!

Less BSODs now???


BTW, that doesn't sound normal. Is there anything that can be done to stop the audio driver from clashing with my memory? Also, you said win32k.sys belongs to system video. So is it the actual card or just drivers clashing with the page files?

Also, should I start a game or something to draw up another BSOD?