I am experiencing random stuttering and system lockups. It is very weird as the lockups do not completely halt the system immediately, it almost appears like the system is at 100% load, blocking all user input devices (cant move the mouse) but will then process the next pending operating after a random delay of a minute or more. Earlier today this happened and I left the machine alone, Windows lost almost all colour to all program windows (turned black) and my multi-monitor setup (2 screens) began swapping between randomly switching between monitors. During this time keyboard and mouse input was not accepted by the system and I had to hard reset.
I know these kinds of problems can be difficult to diagnose but if you guys could offer some opinions, I would appreciate it. I am wondering if this is my video card going (EVGA 260 GTX). I just ran Windows Memory Diagnostic and that turned up nothing. I am also sure my hard drives (which were both just replaced) are also not related to the issue. All drivers are up to date including Asus Xonar and Nvidia Geforce.