Screen Shifts To Right w/ Trident TGUI9680-1

I just downloaded and installed the newest (v4.02.12)st of driversfor the TGUI9680-1 from the trident site.

Since the instalation the screen shifts to the right approximately an inch when in 640x480 resolution (in 256 color, 16bit and 32bit modes).

I have tried 2 other sets of drivers (v3.01.09 and v6.00.20) and both produce the same results since I added v4.02.12.

Could someone please shed some light on how I migth go about fixing this? Thanks