To get round this I've been opening the software centre via terminal which seems to let it work fine. But i needed it working normally and after lots of attempts I couldn't figure it out so decided to just un-install and reinstall it.
Un-install worked fine, but now for the reinstall. When i type into terminal sudo apt-get install software-center I get this back; Reading package lists. Done Building dependency tree. Reading state information.
Okay so I recently had some problems with ubuntu software centre where if I opened it from the dashboard it would open up, but only display a white screen. Nothing happened, so if I then clicked the 'x it would ask me if i would.
E: Package 'software-center' has no installation candidate any ideas? Thanks Ubuntu 12.04.
Done Package software-center is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source.