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I'm using gnome-shell on Ubuntu 12.10 after restart everything was working OK now my screen looks like this

also i can't right click on my desktop.

Any thoughts? Have no idea about what happen.

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The screenshot seems fine to me. What am I missing? – Flimm Nov 30 '12 at 17:34
look at the botto there is a big sace thats whats wrong – idavid Nov 30 '12 at 17:38

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