Yet another "update" that b0rked a working system. You didn't look before you lept, Kenny. That's the problem with using some outside PPA. If you want the latest and greatest, then you must be willing to accept the bugs that come with it.
One of the nicest things about Linux Mint is that, if left alone and updated using only the update manager and updating/upgrading only the "approved" packages, it prevents buggy, experimental software from b0rking your system.