The video card that came with my Dell Vostro 430 worked fine through Win 7/8 and, until recently, 10. About a week ago the display suddenly looked stretched. I'm guessing there was a driver change, and there's no ATI/AMD Win 10 driver any longer, at least not a 64-bit one. I cannot select horizontal resolution higher than 1200dpi or so, which is less than the 1600dpi I was using before (native for my HP monitor).

Not sure why this would have happened, but I'm thinking the best solution is to upgrade to something like a Geoforce 750 TI, which at least seems to have Win10 drivers available.

Is Win10 all 64-bit or something now?