Never had any issues with any Geforce Driver on this. Those resolutions are simply there and working out of the box... Maybe this is a Tesla Driver issue as those drivers are NOT made for GT 430. For me the Tesla drivers did never had any benefit, but only disadvantages compared to Geforce drivers using Windows 7 x64.In Windows XP, I was able to create working 1080p resolutions for 24hz and 23.976. In Windows 7, the resolution is shifted to the left almost 800 pixels or so,