ubuntu software centre problem ! it does not work !

I made a fresh installation of Ubuntu Koala 9.10
the Software centre does not work ! when I click the install button it doesn't install the application, it doesn't shows any error. it freezes without doing any thing. what should I do?
I ticked the 2 basic repositories and I made a reload but it still the same !
Please help me !
It makes me crazy !


I had a similar problem

It turned out i was using the kde version of software center in gnome instead of gtk. I uninstalled the kde version with synaptic package manager and reinstalled teh gtk version and all was fine.