I was so excited and impatient that's why I couldn't wait for ubuntu 10.10 and upgrade to alpha version 2 days ago. Now, my login screen freezes and I get a message as " gnome power manager have not been installed correctly, contact your administrator". How should I resolve this?
closed as too localized by Marco Ceppi♦ Jun 7 '11 at 13:56
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Maybe you should just boot into safe mode and then try to upgrade your system?
I don't know how skilled you are with the console