The Tale of The Glitchy Computer

For those of you who want to check to make sure that everything is working fine on your motherboard: Memtest86 - Memory Diagnostic Page is the page for you.

So far this is what has been tried to fix my computer:
New Power Supply
New Mouse
New Keyboard
Old Keyboard reinstated
Defragged the Hard Drive
Moved the most fragemented file from harddrive C to D, defragged C, moved file back to C
Reduced mouse polling speed [slower icky mouse and when it freaked it just hung the box]
New graphics driver [end result the login screen refreshes slower]
Replaced the DirectX9.0c installation with a fresh one
Turned off the sound card [no sound, no stability]
Reduced the Memory speed from 166 to 133 [slow memory still not stable]

One of the coworkers seems to think that it's a ram power module has gone south. Reason being that the memory on the motherboard at home kept posting errors on memtest. I brought it in, and voila, no memory errors whatsoever. How cool is that?

And the reason why I went through the steps of replacing vid/directx? Well the folks at blizzard on the forums suggested those steps. Oh and then other posters would cite that turning off their sound seemed to make it better. What was going on was that my mouse on occasion in game would just start jumping all over the screen like a chinchilla on speed. And it would click along the way. I'd lose icons, target friends, camera would go all over the place. Not fun. New motherboard is at the delivery place and here is to hoping that it is delivered today.