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Upgraded from 10.x or 11.x and I'm having lots of problems.

All icons in the dock are gone, as well as most other icons:

enter image description here

No icons, applications can't be focused, no window chrome (title bar etc):

enter image description here

Additionally, the mouse pointer isn't moving. It works fine under Win XP.

Is there a way to repair Ubuntu? And keep all application settings etc?

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up vote 1 down vote accepted

Looks like your upgrade has gone wrong. Boot into recovery mode from your Grub menu, enter a root shell and run:

dpkg --configure -a
apt-get install -f
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Running dpkg --configure -a generated lots of dependency issues, but after I ran apt-get install -f everything worked perfectly. Thanks! – Znarkus Jul 31 '12 at 11:18

choose dpkg from the recovery menu. Allow to unmount and remount the filesystem with read/write permission. Once it's done choose root from the menu and enter the command apt-get install -f Reboot after it's done.

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