600 Mhz Pentium, 27 Gig hard drive, Windows 98se, McAfee antivirus.Outlook Express and Hotmail being used. Panicware free popup stopper. DSL access.
I have reloaded and updated Windows 98se, run Bigfix, a thorough scandisk and defrag with no change. These problems began within the past 7 - 10 days.

Two Problems:
1) Immediatley after bootup, while the popup blocker and McAfee are being added to the taskbar, the message "Program performed an illegal operation and will be shut down.

Details: MCVSFTSN caused an invalid page fault in module RPCRT4.dll at 016f:701424b0 (whatever that means)

2) Computer works fine except, even with McAfee and Panicware disabled (and with everything else that Enditall will shut down) I cannot open a website from an email, either computer based Outlook Express or web-based Hotmail or McAfee's update programs via their member page. I can open other sites from Internet Explorer, both MSN and Netscape.

Help, please.