new Dell 24" lcd not working at full res
I just picked up a dell 24" widescreen lcd, and it is not working correctly at full (recommended) resolution of 1920 x 1200. I have it hooked up w/ DVI-D, and the proper drivers installed. When I right click desktop, go to display and slide it over to 1920 x 1200 which is what they recommend, instead of showing the full screen it now only shows a portion, like it's zoomed in 4x and moving my mouse to the corners will make the screen scroll.
Any guess as to what is going on? I checked to make sure my vid card Sapphire Radeon 9000 Pro supported 1920 x 1200, so don't think that's the problem, but am out of things to try.
Thanks in advance guys.
Just noticed, when I go to display properties, advanced, and the in ATI's display props program I click displays, and it shows 2 displays being detected. The CRT, top left, says it is the NEC Multisync 950+ (correct). The 2nd active display (FPD, bottom right) says it's the HP 150, with a small max resolution. I do have the correct drivers installed, xp display props says detects it as the dell 24". Could this be part of the problem? I'm tempted to get a more powerful gfx card, but don't want to if it will work with this one.
Again, any help would be greatly appreciated. Thanks