I don't know whether this is a Windows 7 problem or a Catalyst problem, but here goes...
I have installed Windows 7 (clean) and the latest Catalyst drivers
for my ATI HD4850 card. My monitor is a Samsung SyncMaster 2243NW, a 22" panel with a native res of 1680 x 1050. I have installed the monitor driver
from Samsung's website and the monitor is now showing correctly in device manager.
When I right click on the desktop and choose "screen resolution", the "change the appearance of your display" screen offers only "display device on DVI" ion the drop down menu, not the Samsung monitor, and does not offer me the native resolution. The nearest is 1440 x 900. If I click "advanced" I'm taken to the catalyst driver screen which correctly identifies the monitor, but bizarrely still offers only the same choices of resolution as the Windows 7 screen. 1680 x 1050 just isn't there.
Can anyone help me get my monitor to run at native res in Windows 7?