dino99, the comment you refer to was an answer to Michael's question about how to emulate the button clicks to reproduce the problem. It was not "the real issue" or a solution for the problem.
Anyway, I've just borrowed a mouse with Back+Forward buttons, and reproduced the problem in Ubuntu 14.04. In addition to the areas highlighted by Robert Roth, the Back button is also incorrectly treated as a primary-click on apps in the "What's New" and "Top Rated" apps on the home screen -- but oddly, not on the "Top Rated" apps in a section screen like "Games". The Forward button seems to be incorrectly treated as a primary-click only on the toolbar. ** Changed in: software-center (Ubuntu) Status: Invalid => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/871810 Title: Hardware mouse 'back key' doesn't work always in USC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/871810/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs