There seems to be something broken with the Ubuntu Software Center (or at least my install of it), and what ever it is also effects some other internet-connected native ubuntu apps (Ubuntu Tweak, Nuvola Player, and Lightread (although lightread doesn't give the error message)).
When I try to install a free app that goes through the payment service (as in one that you 'buy' for $0.00), or a paid app, in the Software Center, I get this message:
*Unable to load page Problem occurred while loading the URL https://software-center.ubuntu.com/subscriptions/en/ubuntu/quantal/+new/?archive_id=commercial-ppa-uploaders%2Fstormcloud&arch=amd64 Cannot resolve hostname (software-center.ubuntu.com)*
Nuvola gives me a similar message:
Unable to load page Problem occurred while loading the URL http://8tracks.com/ Cannot resolve hostname (8tracks.com)
And Ubuntu Tweak gives:
Unable to load page Problem occurred while loading the URL (I have to put this text here so it's not more than two hyperlinks in the post)http://ubuntu-tweak.com/utapp/ Cannot resolve hostname (ubuntu-tweak.com)
I have tried reinstalling everything other than the Software Center. The problem appeared a few weeks ago. My internet works fine. I ave screenshots of the errors but I don't think it would help much; they just look like an unstyled firefox Server Not Found error, and have a 'try again button'.
I have no clue what is wrong, and any help would be greatly appreciated!