Ok, here's the situation: MPC Transport laptop running XP Pro. After boot, everything is fine. However, after a while, the CPU usage bounces around between 20% and 30%, even with all programs shut down. It's irritating as hell, since it makes the system jerky (not just the mouse, the whole thing stutters).
Sometimes, if I shut down all instances of IE, it'll smooth itself back out....but sometimes it takes a reboot. I've tried ending the following tasks from the Task Manager (at some friend's suggestion) when it occurs...sometimes it works, sometimes it doesnt: kbpatch.exe, sqlsrvr.exe, sqlagent.exe, and a couple others that I don't quite remember.
Anybody have any idea what might be causing this, and how to get it to stop?