Ok paging files were not disabled i have set them to what you specified.
The twitching/glitches are constant but only in games, really hard to explain them but it is impossible to play. It is not like just a screen flicker tho, it is absolutely a problem with the way the graphics are being rendered. there are spikes coming out of walls, and i can see through things, and things just disappear and flash all over the screen it is horrible.
i will try and explain the 3D direct cubes better:
the box spins in the center of the screen, which it does on mine. However as it is spinning it is like the entire box is being stretched and one corner of the box is actually flashing into the top right of my monitor. It so strange and it also is twitching making very slight jumps left to right.
Oh and I am not using a wireless mouse