[xubuntu] Ubuntu Software Center Not Working Properly

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http://ubuntuforums.org – Hi I Am Vishal, Actually I Stuck in a Problem which is related to The Ubuntu Software Center Which is not Installing any software which i select from the Software center, When i click over Instal Button it shows "Installing" for just 1 sec and then its gone back to normal means not installing, i have tried many commands on Terminal like Purged the Software Center and re-installed it again through some commands Even Synaptic Package Manager is not working from Start Main Menu. But When i use commands like following in Terminal they both applications works fine also installs that ap (Hardware)