Ive written a basic tank game in openGL but it seems when i run it in full screen i get certain polygons overlapping each other as if the z-buffer is confused as to which goes on top. It only seems to happen around the edges of polygons. I wouldnt normally complain but its really bad in fullscreen and not there at all in windowed mode... strange. Does it have anything to do with the scale of my world??? Thanks Leigh White www.computing.edu.au/~whitelg

If you are using different color depths do you on most cards also get diffent precision on the depth buffer. If you are setting 16 bit color depth in your fullscreen mode try to change it to 32 instead.