GLX problem with nvidia 304.88

Hi: I've been using 304.88 under 3.8.13-100.fc17.x86_64 without problems. Today I installed 3.9.8-100 and its kmod, and the glx module from Xorg is being loaded. Attempts to run Mythfrontend or Mythtvsetup go straight back to the login screen. My xorg.conf has Section "Files" # ModulePath "/usr/lib64/xorg/modules/extensions/nvidia" ModulePath "/usr/lib64/nvidia/xorg" # ModulePath "/usr/lib64/xorg/modules/extensions" ModulePath "/usr/lib64/xorg/modules" FontPath "/usr/share/fonts/default/Type1" EndSection (where the lines commented out were originally installed by 304.64, which then had the same problem) and /etc/X11/xorg.conf.d/00-nvidia.conf has Section "Files" ModulePath "/usr/lib64/nvidia-304xx/xorg" ModulePath "/usr/lib64/xorg/modules" EndSection Both of these look as if the nvidia modules should get preference. Reverting to the earlier kernel doesn't revert to a good working system; I have the same problem there now. Suggestions? Thanks, John P