[ubuntu] Unity acting up?

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http://ubuntuforums.org – I have Ubuntu 11.10 with Unity. All of the sudden my windows decorations decide they're going to disappear(this has been an ongoing issue since I installed Emerald), I don't use Emerald now, I use the GTK windows decorations. Anyway, I was just simply browsing around and talking to my fiancee on Pidgin and my windows decorations disappear, except this time I can't do anything, can't bring up a terminal to fix it or anything. So shut down my computer, turn it back on and log-in.. Still, no borders, no ability to bring up a terminal or anything to fix the issue. Anyone have any ideas? (Hardware)