[Bug 988912] [NEW] 12.04 missing icons and system button

[Launchpad Bug Tracker]

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I upgraded 10.04 to 12.04 beta and have run update and upgrade in
terminal.

The app bar on the left has missing icons even the the name is there and the app can be run by clicking the blank space. 
The system button, that I believe should be on the top right next to my user name, is not accessible. My only shutdown option is to press my power button which brings up the shutdown options box.
Many windows once open don't appear to have a minimise or close option. 

You can find a screenshot here
http://ubuntuone.com/121y7VYo8VS97zCanmJYnz

I accept that there are going to be differences with Unity but these are
basic issues for a supposedly LTS!

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New

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12.04 missing icons and system button
https://bugs.launchpad.net/bugs/988912
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