When SP2 first came out there were a number of programs, including antivirus programs that had similar problems..Sometimes, simply uninstalling the program (make sure to manually uninstall by removing all files and registry entries), then reinstalling the program works wonders..Have you done that?
Have you tried disabling the Security Center option which monitors your antivirus? To do that, open the Control Panel, double click on the 'Security Center' icon, then click on the "Change the way security center alerts me",. When that opens, UNCHECK ALL the boxes there. Click on OK.
Hope this helps.
After installing SP2 on my XP Prof. machine, I found that my Panda AV sw (Titanium 2004 v. 3.02.04) wouldn't work anymore. Some warnings I got were: Automatic Antivirus Protection: Error; An internal error has occurred in your antivirus and The automatic file protection could not load correctly. I have done everything they suggested on their website and after much adoo finally got some reaction from their helpdesk which sent me programs to collect info from my machine that didn't work because they claimed that my username and password were invalid (they are not). Even trying to unsubscribe from their newsletters and bulletins doesn't work, they just send me more of them. Does anybody have similar experiences with Panda or is it just me.