Comment 24 for bug 499937

I found the reason of the problem and I feel like a stupid, but maybe could happened to others, the problem is that without notice I login in GNOME failsafe mode and that's the problem with generalized authentication problems, so is good to review if someone else is login in the same way and one of the effects is that from Ubuntu center software install button don't do anything.

I'm sorry for the noise and thanks, I'll continue with the sound problem.