Hi Matt,
shurly it's possible to do this.
The script I added is a realy stupid one just for cycling through "all" modes supported by the installed video adapter.
Just call
usGetScres with the index starting with 0 (1, 2, 3, ...) until you get 0 as a return value to read all possible modes.
I'll try to implement your idea of a selection dialog but I know about problems displaying windows dialogs in DirectX-fullscreen mode.
Give me some time - I'm back with the best solution I can manage...

mercuryus