Video playback color problem in totem or vlc

[Axel]

Hello

Video playback used to be good but now color rendering isn't accurate 
anymore. Blue parts are now green, green parts are violet, and so on, in 
video playback . I tried totem (gstreamer backend) and VLC.

I m using nvidia driver from the livna repository.

I launched gstreamer-properties, moving the "autodected" to the X-Window 
System (without Xv) entry fixes the problem, other items doesn't change 
anything.

How could I fix it and use the "autodetect" entry ?
What could I have done which caused this problem ?

Thanks in advance.