im having many problems with my computer.. first, when i try to boot it up in normal mode it only sometimes runs, mostly it says that i am missing a file the file is system\Drivers\pci.sys when i try to boot up in safe mode it freezes...
when i try to run it in normal mode it resets after so long..

also i have a process running that i havent heard of and cant find any info on it any help would be great thanks,, the process is gwdfaaaa.exe i am able to end the process but if i dont i seems that this process is the reason to making my computer restart..

here is a hijackthis log..

Logfile of HijackThis v1.99.1
Scan saved at 4:15:53 PM, on 7/24/2006
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\TGTSoft\StyleXP\StyleXPService.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Mozilla Firefox\firefox.exe
C:\WINDOWS\svchost.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\HJT\hijackthis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://us.rd.yahoo.com/customize/ie/.../www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://us.rd.yahoo.com/customize/ie/...ch/search.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://us.rd.yahoo.com/customize/ie/.../www.yahoo.com
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: CIEPl Object - {6BB18EFE-F2C7-457C-81FE-705757171FA0} - C:\WINDOWS\System32\syspcap.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O4 - HKCU\..\Run: [Firefox] C:\Program Files\Mozilla Firefox\firefox.exe
O4 - HKCU\..\Run: [ares] "C:\Program Files\Ares\ares.exe" -h
O9 - Extra button: My IP Suite - {FB5F1910-F110-11d2-BB9E-80C04F795683} - C:\Program Files\My IP Suite\MyIPSuite.exe
O9 - Extra 'Tools' menuitem: My IP Suite - {FB5F1910-F110-11d2-BB9E-80C04F795683} - C:\Program Files\My IP Suite\MyIPSuite.exe
O20 - Winlogon Notify: syspcap - C:\WINDOWS\SYSTEM32\syspcap.dll
O20 - Winlogon Notify: WRNotifier - C:\WINDOWS\
O21 - SSODL: IEFilter - {3B1B6C84-A27D-4EB8-B305-77F3D934F182} - C:\WINDOWS\system32\IEFilter.dll
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - Unknown owner - %ProgramFiles%\WinPcap\rpcapd.exe" -d -f "%ProgramFiles%\WinPcap\rpcapd.ini (file missing)
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc (SPBBCSvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: StarWind iSCSI Service (StarWindService) - Rocket Division Software - C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
O23 - Service: StyleXPService - Unknown owner - C:\Program Files\TGTSoft\StyleXP\StyleXPService.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: TuneUp WinStyler Theme Service (TUWinStylerThemeSvc) - TuneUp Software GmbH - C:\Program Files\TuneUp Utilities 2006\WinStylerThemeSvc.exe