Never had an issue with ZA ever... but the latest update is causing some issues. couldn't figure out why i was getting "cant connect to websites"(Paraphrasing... trying to duplicate it now but ZA is not responding after trying to change from medium to high) turns out that ZA being set on HIGH won't let me browse. and sometimes it wont let me browse on medium. also pc is slow to respond to anything, i.e. simply right clicking takes a good 20 - 30 seconds to pop up a menu.
service pack 3
ZA free anti virus and firewall
cant put version at this time because it shut down for not responding and want to finish this post before restarting pc.