Comment 58 for bug 184440

Seems to me to be a Xine / Gstreamer / NVidia problem. I was happily using Ubuntu 8.10 with my NVidia 8600GTS running the restricted drivers using mplayer, vlc and totem-gstreamer and I tried installing totem-xine which installed along side totem-gstreamer. After this my hue would often almost randomly change for all my video applications. I tried uninstalling totem-xine and reinstalling all the other totems. This didn't help till I removed the Xine libraries as well.

Seems to be back to normal now.