260.19.29. Mplayer from git(repo.or.cz/w/mplayer.git) can hung the system much often than the mplayer from ubuntu repos. This can happen if you switch to fullscreen. But system can not only hang, sometimes it can work but there are garbage on the screen, and it can be screenshotted.
BTW is there any way to reload nvidia driver without reboot? When the garbage appears I can switch to another tty, kill X and unload nvidia driver(rmmod nvidia), but can't load it again(insmod nvidia and modprobe nvidia doesn't work).