DELL Dimension 2400 with ; 2gig of RAM ; Intel P4 2.8Ghz CPU ; Windows XP Pro SP3 ; Zone Alarm Internet Security Suite v8.0.298.000

I had a virus or trojan issue on this desktop and as far as Zone Alarm and True Sword 5 are concerned there are no trojans or adware or spyware on this machine. I upgraded to the current version of ZA yesterday and left the AV scanner to scan the machine. When I came down this morning, the ZA AV scanner had only scanned 46 files and locked up 45 minutes into the scan. I experienced this same problem yesterday and upgraded ZA thinking this would fix the problem. After doing a hard shutdown and rebooting the machine I tried the AV scan again and as soon as it hit this program in C:\windows\system32\MSVCP60.DLL, the scan stopped scanning and the machine locked up. I have replaced the dll from a CAB file and this did not help.
I also put this file and path in the exception list of not to scan but the software still scans.

Any ideas????

Thanks, Joe

Operating System:Windows XP Pro
Software Version:8.0
Product Name:ZoneAlarm Internet Security Suite