Please see the following three threads (and probably more if you search for them in the forums) http://forums.gentoo.org/viewtopic.php?t=221084&highlight= http://forums.gentoo.org/viewtopic.php?t=220650&highlight= http://forums.gentoo.org/viewtopic.php?t=224124&highlight= Reproducible: Always Steps to Reproduce: 1.emerge gentoo-dev-sources-2.6.8-r3 2.try to run one of many different opengl applications 3.see your application cry in pain Actual Results: The opengl applications either do not work or work horribly Expected Results: These systems are very nice and should not only work, but work well. down-grading to gentoo-dev-sources-2.6.8-r3 corrects these problems. This has been verified on many different systems, I don't claim to know why though.
possibly a dupe of bug 63907
I am told and would agree -- that this other bug (http://bugs.gentoo.org/show_bug.cgi?id=63907) is the same bug. I searched and searched to see if it had been reported. Alas it looks like I posted a duplicate bug! *** This bug has been marked as a duplicate of 63907 ***