Alter resolution of GL apps/games
I have just got an Nvidia GT240 card and have for the first time set up dual monitors (An LCD @ 1024x768 and a projector @ 1152x864) I have them set up as twinview so I can drap/drop between the two and run compiz across the two.
My problem is in running some games (Hedgewars, Powermanga, I have no tomatoes) These games run full screen and currenlty span the two monitors which is not workable as they are not side by side and run different resolutions.
How can I tweak these apps to run on only one monitor without altering the xorg.conf and losing the functions mentioned above? I have found a resolution setting in Hedgewars but it only give one option and does not allow me to overtype it.