When I'm running a full scan, Norton Antivirus(OEM) 2000 freeze about scanning about 14%. My CPU Usage also rises to 100%. I have Sygate Personal Firewall v4.0 and ZoneAlarm Pro v3.5. No application is running during scanning. Your help will be really appreciated. Thank you

Try disabling the Sygate firewall, and also check to see how many other programs are running in the background. Just to make sure that a virus has not attacked your NAV, try an on-line virus scan from the any of the major antivirus companies like; Symantec, Trend Micro, Panda, Macafee websites.There is no reason to use two software firewalls. If you really want more security add a hardware firewall to your Zone Alarm pro.

As capt touched on,running two firewalls is not a good idea.IMHO,if you want less problems,get rid of ZA,and stick with Sygate.

Hello Tal, As already said before, it's impossible to run two firewalls together in a machine, especially when you know sometimes for any reason known ZoneAlarm is freezing some programs. If you didn't buy ZoneAlarm PRO, I would suggest already to uninstall it and keep Sygate you will update to the new version freeware 5.0: http://soho.sygate.com/products/shield_ov.htm Then, you will try to see if your "liveupdate" in Norton is working well ? because sometimes this program bug in the update, and then refuse to perfom correctly. To correct this problem if found, you just download the update of virus definitions directly from Symantec as a EXE file, that you execute as soon as possible. That will fix a new virus database totally and will resolve the problem of Norton...

hello kid a hard ware fire wall is totaly diferant than a soft ware one like sysgat or zap. and all sights like grc recomend useing both. two soft ware fire walls like you say are not recomended. have a good day there kid.