Graphics bug.....

[KilyenaMage]

So I haven't played in awhile and when I logged in i noticed that sometimes when I turn my character, a sort of "grid" appears on the screen. It happens too briefly to get a screenshot, but happens often enough to be fu#$ing annoying.

Basically the screen alternates with white squares and fully rendered colored squares across the screen in a checkerboard-type pattern.

I've tryed screwing around with ATI Catalyst disabling/enablind AA, Anistotrophy, V Sync etc. Anyone know what might be causing this!??! (only happens with Emu0