[mythtv] Ticket #1248: mythfrontend crashes at end of playback, SVN 8908

[Robert Kulagowski]

>  rkulagow, there is a bug in recent nvidia drivers that makes XvMC not work
>  with OpenGL vsync, nvidia is aware of the problem and has promised a fix
>  in a future release. I'm running version 66.29, but there are reports on
>  the mythtv-user list that one of the 7x.xx versions works as well. AFAIK
>  none of the 8x.xx versions work.

Pretty sure that 7676 is supposed to be ok:
(II) Loading /usr/X11R6/lib/modules/drivers/nvidia_drv.o
(II) Module nvidia: vendor="NVIDIA Corporation"
        compiled for 4.0.2, module version = 1.0.7676
        Module class: XFree86 Video Driver