I have a Quad 2.93GHz that has been running perfectly but today it has started stuttering. When I move the mouse, it will pause every few seconds, and then it will jump back. The same when typing, it will pause every few seconds.
I have removed my extra hard disks, put the original RAM back in, and even rebooted from the DVD, and it still happens.
I have removed my extra hard disks, put the original RAM back in, and even rebooted from the DVD, and it still happens.