Hi. I've looked through the forum but can't seem to find anyone with the same problem as me. I just bought a Asus P5Q Se2 mobo, Intel pentium Dual core and an XFX 8800gt Alpha Dog gc. I can get into XP fine, and tested linux too, but when i try to install any Nvidia drivers (even tried as far back as 169.xx), the screen turns black with white squares in a repeating pattern. I bought a new 700w psu so that shouldn't be a problem but i really cant think what it could be! I'm wondering whether it'd defective or if i'm just being a fool! Any help much appreciated guys! Rich.