[64 bit] Stuck in Unity 2D

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http://ubuntuforums.org – Hi, First, here's some background: Ubuntu 12.04 64bit, graphics card: Advanced Micro Devices [AMD] nee ATI Whistler [AMD Radeon HD 6600M Series] (output from lspci | grep VGA) My whole issue stemmed from trying to give different workspaces different backgrounds. To this end, I installed compizconfig-settings-manager. Then I did something stupid, not knowing precisely what compiz or unity is: I first ran the command 'compiz', which gave me some kind of message saying 'try compiz --replace instead.' So I ran 'compiz --replace,' and that's when the problems started. Basically, (Hardware)