So i bought and built an i7 computer with a gtx 275 in it. The drivers are from nvidia.com. I don't really know what info you need..
The monitor i am using is http://www.samsung.com/me/products/monitor/lcdmonitors/932b.asp
except mine is black. This monitor has the same model number as mine so i assume its the same.
The whole build is new like I said before, and after full updates and driver installs, under the display settings, the max setting is 1024x768. On my old core 2 i could go up to 1920x1024 like I said.
The only change I really made is a new system, and that I am using the digital connection (white connector) instead of the blue (i guess analog?) connector..
Please let me know what info you need