[ubuntu] Default monitor resolutions too low.

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http://ubuntuforums.org – Hello, I've just installed ubuntu 10.04 on my desktop as a dual boot with windows 7. My problem is that the available monitor resolutions in ubuntu are much lower than the correct resolution for my monitor (which is fine in windows). Can anyone tell me how to add a higher resolution for the monitor please? The monitor I'm using is a Dell with the model number SE197FPf. I haven't been able to find any information about the specifications. I also have an nvidia GT430 graphics card (which I suspect is causing the problem). I plan to upgrade to a newer version of ubuntu very soon, so i (Hardware)