I recently bought a Dynex 19" LCD HDTV for my dorm. I have a MB, and just bought a mini DVI to VGA adaptor. I have the VGA cable and hooked it into the MB and in the back of the TV. I went to the correct input on the TV.

Ok, now I can get a 'mirrored view' on a few of the different resolutions, but once I click the extended desktop icon, the tv loses the input and says it is incompatible. How can I get this to work? Thanks.