I am running Ubuntu 12.04 on my laptop for some time now. Since the first day only I have been facing the problem with icon images of some application not appearing up. It causes a lot of inconvenience in locating/identifying an application to be launched.

I have updated my Ubuntu with the latest build today only but still the problem persists.

I have googled around and tried everything relevant available out there but with no success.

Please note that reinstalling Ubuntu is NOT an option right now.