Some weeks ago I decided to give FreeBSD a shot. It seems to be working rather well expect Linux OpenGL programs word really slow, or not at all. Doom Legacy runs slower than 1 frame per second and Doom 3 crashes like described in this thread: http://www.nvnews.net/vbulletin/showthread.php?t=38409
What's wrong? I've installed the linux-base-8 and linux_xfree packages, As well FreeBSD NVIDIA drivers.