Please attach your /var/log/Xorg.0.log or Xorg.0.log.old following one of these crashes. Also, please collect a full backtrace - see http://wiki.ubuntu.com/X/Backtracing for directions.
Please attach your /var/log/Xorg.0.log or Xorg.0.log.old following one of these crashes. Also, please collect a full backtrace - see http:// wiki.ubuntu. com/X/Backtraci ng for directions.