Full screen woes

[MrKsoft]

(MMF2 standard, build 248)
I've been having some problems with full screen mode.

My game has an actual screen resolution of 160x120 pixels. This is stretched to a 320x240 pixel area (exactly double the size) using the Window Control object, combined with the application option "Resize display to fill window size".

I've set up a toggle between windowed mode and full screen. The problem here is that I cannot for the life of me get the full screen mode to display properly. On every monitor I own (and all the ones that I don't own that I've tried it on), CRT or LCD, it displays only in a 320x200 area (instead of 320x240) on-screen and squishes everything down to fit.

In the past, I have made SEVERAL applications in MMF (1.5 and 2.0, in fact) that use 320x240 pixel display areas and they all display completely fine in full screen mode, so it's not that the monitors can't support the mode. In fact, my monitor claims to be displaying in 640x480 mode (it's an LCD) even though taking a screenshot and pasting into paint reveals that Windows is only doing a 320x200 screen.

Now, it gets weirder from here. If I move between frames in the application, the screen changes and instead of stretching everything to fit it starts cutting off the bottom 40 pixels. Everything that's on screen looks fine and unstretched at this point (which it should) but without the bottom 40 pixels where the game's displays are located the game is unplayable.

I've tried several different ways of attempting to fix this, including rescaling the window back to 160x120 before going full screen or, in an opposite attempt, quadrupling it to 640x480 first and then seeing if it would just display properly in that. Neither way worked.

I need the scalable window so that the game area is viewable on large screens without the requirement of full screen mode, but I want full screen mode to be there if it's wanted. What should I do to solve this problem?

[MrKsoft]

I hate to bump this, but any ideas?