Every time I enter on Ubuntu, this happens:

Then when I put my mouse in the corner it would give me a black image

I have my unity enabled but it doesn't give me a little box next to it to enable it(but I think I have it enabled because when I click on it in the left it says to enable it and I have it enabled)

Can someone help me with this?

marked as duplicate by January, Warren Hill, Alaa Ali, Braiam, Eric Carvalho Sep 15 '13 at 0:37

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