I have a Dual Desktop with separate X Screens on Kubuntu. I set it up with nvidia-settings. One screen is a LCD 19" LG monitor, and the other one is a TV (Guess what for
The monitor works just great on its 1280x1024 res.
The TV looks fine on its 640x480 res.
The problem comes when I open a window on the TV, be it browser, media player or whatever. It opens out of the screen (If I minimize/restore it, I can see it going to the right side). And If I maximize it, half of the window is out of the screen.