Hey guys I have been having this problem for awhile. I have a quad core Q6600 with a Asus P5n-d board. I have a Nvidia 9800 GTX card. I have 2 hard drives both with fresh installs 1 has xp pro 32 bit on it the other vista ultimate 64 bit. Both have the latest drivers for motherboard/video card. OK the problem is that with the xp pro 32 hard drive everything is great. however when I boot off of the other hard drive with vista 64bit I can't get a resolution bigger than 1024x768. I am using a 21" widescreen monitor with a naive resolution of 1680x1050. Everything works fine in xp but vista is not working. I had vista 64 up for awhile and everything was fine I formatted and reinstalled now I can't get it to work. Another funny thing is if I turn it on without any drivers the default plug and play drivers willl allow me to set the proper resolution. then as soon as I install the nvidia drivers it reverts back to the 1024x768 Please help me. THANKS
The only problem i can think of is the GPU. Like, when I installed Vista, at first the resolution would lock at 1280x1024. After that i installed the graphics card drivers and i was able to set my native resolution. But, when I installed Windows 7, it automatically set it to native resolution (Vista-x86 , W7-x64) So, login to XP and completely uninstall your card drivers. Then reinstall.