Thanks Temujin, that thread looks promising though it will take me a little while to work through it, I'm unfamiliar with git. However, the main problem I'm having is that OpenGL doesn't seem to be working at any virtual screen size. Any suggestions on how to fix that?
Let me ask you the same question I asked Thelasko--since I'm having this problem both with my i945 Dell Laptop *and* a Mac Pro with an ATI Radeon X1900 graphics card--what happens when you run 'glxgears' on your system? What happens when you click on the frame, and drag it somewhere else? Do the spinning gears come with smoothly and effortlessly, or do the gears remain where the window was originally until you release the mouse? Do the gears 'float' on top of other windows? Any other repaint problems?
NB, opengl works pretty well in Windows on my Dell--The game 'Sauerbraten', a Quake-like first person shooter built with opengl, renders at 60 fps, which seems pretty good for full screen graphics. The only thing it can't do are high-level things like the surface of water. So as that bug report suggests this isn't a hardware problem for the Dell either (and obviously not for the Mac).
Best,
Matt
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