Ok whenever I make a room I test it..and but the room image doesn't stretch to the whole screen like it would in the 'Fullscreen Preview' I'd say a good 1/4 of it is black around the borders..How do I fix this?
What resolution is the game, what size is the background?
I bet it's just the monitor setting problem. Maybe your game used a graphic mode that the monitor had never be set to before, just mess with the monitor controls (usually appear as knobs/buttons/etc in front of it).
Its 320x200, maybe I shhould try it on my brothers computer..but then why does Apprentice (ags game) rune full screen?
Hmmm is your game hicolour ? I'd heard Apprentice was 256 colour (I never played that game, maybe that's hicolour, in that case, is your game 256 colour?).
Note that 320x200x256colours and 320x200xhicolour are tweated as two different graphic modes.