[ubuntu_studio] Need help with some glitches

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http://ubuntuforums.org – A few kernel updates ago, I ran into a problem where windows would lose their decorations in the title bar. Creating a new session fixed this, but it's less than optimal and leads to a long list of broken sessions. I removed some cached files, and the problem would resolve for a while, but eventually I end up with the exact same problem. I couldn't seem to narrow it down to any specific program, so I abandoned sessions altogether and just start in UbuntuStudio. This worked for a while, but then a new kernel update came in and brought me another issue. I've lost the ability to set a background (Hardware)