Hi all !
I got a problem : all my videos are blinking, but the sound is ok
I can use VLC, Mplayer, or totem, the results is the same, it's blinking black 1 image on two
My graphic card is "ATI Technologies Inc Radeon Mobility X1400"
I have enabled the property drivers. It said that those drivers has been tested by the Ubuntu developpers.
"This driver is activated and currently used" it says, aside a green logo
What can I do ?
EDIT : see answers below