look and feel from my game on different plattforms

Hi!

I build a little game (saved as runtime and renamed it, so it is now a screensaver). This looks on my pc (win xp, 1280x1024) nice. But on other computers and plattforms it dosent look such nice… One texture is for example is stretched on one axes and the game isnt fullsiced like on my pc.

So my question is: Is it possible to build a config or somethink like taht for that? Perhaps i can write an easy file that i send to my friends where the could chose there sice?!

Best wishes
Patrick aka Eisbaer