Well, I've used NAV before, and I used to run into severe problems where I had to reinstall Naughty Norton after a SysRestore operation. Not to mention that if I wanted to play any games, I had to turn off auto-protect to get good framerates (this was before Intel's HT came along though
) So, I turned to McAfee Professional and I've been happy ever since. Combined with ZoneAlarm Pro and the latest Windows Updates, I've managed to lock my system up tighter than before. Did I mention that the AVsignature updates are smaller to download?
Sorry, but I am not about to switch for now. I'll have to check out VirusScan 10 though and compare it with NAV05 before I switch.