I've got a mysterious problem with my pc. Every now and again I notice that the mouse pointer jumps. If I make a smooth line with the mouse the pointer freezes then jumps to catch up at regular intervals. At the same time the sound cuts in and out. This is with no programs running.
I tried opening task manager and killing processes one by one until all I have left is the bear minimum to keep the system (XP Pro) running. The only way I can get it to stop is to reboot the pc. Then it'll be fine for a while but after some time it happens again.
Has anyone got any idea what might be causing it?