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uname -a:
Linux splitter 2.6.38-8-server #42-Ubuntu SMP Mon Apr 11 03:49:04 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

All of the windows on my desktop are missing a title bar and the decorations to maximize/minimize and close the window. I can reposition a window only by holding down the left ALT key while doing a left mouse click and drag. I can maximize/minimize a window only by using ctl-alt-keypad-5. I can close a window only by using a quit menu entry or by using the desktop toolbar on the left side.

I suspect that I accidentally hit some sort of weird key combination and set a sticky preference of some sort, but I can't for the life of me find out where to reset it. Any thoughts or suggestions?

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Open CompizConfig Settings Manager and on the effects tab make sure you have the 'Window Decoration' tickbox checked like below;

enter image description here

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Thanks. Had to install the pkg, but this might have been the problem. – RWShore May 7 '11 at 11:38

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