With Windows 7 WDDM drivers, it is able to recognize my monitor and also allows me to use the native res of 1080p. Whenever I update to the latest NVIDIA Windows 7 64-bit drivers, my monitor is not supported and limits me at 1600 x 1200. I've tried doing custom resolutions in the Windows display advanced settings and in the NVIDIA control panel but neither of them work.
I have also tried installing my monitors drivers from the CD and off the internet, but neither has helped me.
I've tried looking on Google for a work around and see that other people are having similar problems, but I have yet to see a definite solution.
On the upside, my 20" and 42" seem to work... but I use my 25" as my primary and wish it would work. ;p
I have a HANNS-G 25.1" monitor (HH251) and an 8800GT if any of these really matter in troubleshooting.