Right have just tried all the resolutions from 240x240 and upwards on my BFG 8800GT OC 512MB card and i get a display on all resolutions under Windows Vista 64. On the downside the 7600GT running on my mame PC under windows XP 64, i bought especially for soft15khz, doesnt display a 240x240 picture, just says 'can not display this mode' on my Dell 2405FPW 24" Monitor.
Sailorsat, do you think because my 8800GT is DVI and my 7600GT is VGA would make any difference at all, as thats the way they are connected up to my Dell, one uses the DVI and the other VGA on the back of the dell? Dont really want to buy a 8800GT and have to use a VGA cable (as my monitor doesnt have a DVI connection) to find out it was the cable that was stopping me from displaying the lower resolutions, maybe because its a digital (DVI) rather than analog (VGA) would change anything?