I removed my video card (nVidia Quadro4 900XGL 128Mb AGP, neither legacy 96.43.16 nor 96.43.17 nvidia driver worked) and installed a more recent video card (nVidia Quadro FX 4000 256Mb AGP) that my system can handle. Rebooted using the nouveau driver, ran glxgears and received ~125 frames per second. I then installed the latest nvidia driver (kmod-nvidia-PAE.i686 1:195.36.24-1.fc12.3) from RPMFusion using the fedora forums' procedure
, rebooted with no problems, ran glxgears and received ~4500 fps. Excellent! Kids can play tux racer again. Streaming video choppiness is gone.
Dell Precision 530 Dual Intel P4 Xeon 1.7Ghz
2x512Mb PC800 ECC RDRAM, Maxtor IDE 40Gb ATA, Maxtor IDE 80Gb ATA, Maxtor IDE 160Gb ATA
nVidia Quadro FX 4000 256Mb AGP, kmod-nvidia-PAE-195.36.24-1.fc12.3
Dell S2309W monitor, Intel i810 and onboard AC97 sound