My Windows XP SP2 freezes for a few minutes after starting up. It started happening right after installing NOD32 2.7 trial. I think it may have something to do with its signatures auto-update, but who knows. Actually, I can't even be sure it's NOD32's fault, although it seems to be the case. I managed to open the Task Manager while it happened (wasn't easy), and found that the problem's cause was one of the "svchost.exe" system processes, using 100% CPU and taking priority over everything else. What gives?