Did a pretty thorough test on a rig with Gef3 Ti 200 in it...
Tried in all combination of these modes:
16bit, 24bit, windowed, fullscreen, high quality (DrawAdds, DrawAlphas, DrawAlphaCols) and low quality (Draw and StretchDraw only).
The game displayed kindof normally, but the cpu usage went up, up, up!
The game could ran at around 16FPS
The video drivers were from march, so I guess those were pretty much new enough ^^
Aaaand yes I'm pretty sure it's something about the videocards I would think it's the stretchdraw part, buuut dunno what I messed up in my way of doing it so the Gef3 and older cards hate my prog such a bad way... :\
Ahhh, well, I guess I'll get a few ****you mails from Gef2MX users after I release the game
Oh, Czar, and I have to add, that the game more or less did the same way in windowed; fullscreen and 16bit; 32bit mode on the Gef3 and only got somewhat slower in "highquality" mode, so I guess why not 32bit in that case (Nicer blending hopefully ^^ Too bad my monitor is so crappy I can't really see the diff )