I am experiencing some issues with certain games in Ultimate Edition that I haven't experienced in other distros. During game play, the game will go from fullscreen to windowed. Normally not a big deal, but the keyboard and mouse stop working as well. The only way to get back is to hit the power button on my system, which brings up the Ultimate Edition shutdown menu. Then I can cancel that and the game will go back to fullscreen. So far, it is mostly with the games Urban Terror and Americas Army.
Has any one else had this issue? Those games ran fine under the other distros I used prior to Ultimate Edition.