Weird FullScreen mplayer with X 4.3.0

[xmart]

I've updated recently X to 4.3.0 from 4.2.1 (with others packages i.e. 'emerge -u world') and mplayer doesn't work well anymore.

In full screen I've got a double image with many horizontal lines but in window mode works ok. Video outs other than xv, are simply not usable in fullscreen.

I've compiled with all the related flags I know, ('dga', 'xv'...), I've tryied many versions of nvidia drivers (3xxx, 4xxx) but without results.

Anyone can help me?

xavi