An odd Catalyst Control Center problem

As the title says, I have an odd problem with CCC.

It will not open, but it is running, and I can change some settings with the sidebar menu in the bottom right, but when I try and open CCC it just gives me the hourglass for about 15 seconds and then disappears. A quick check of processes with the Task Manager shows that it is clearly running, the window just never pops up.

I have re-installed both CCC and my drivers several times, making sure to re-boot between each step of the cleaning process. I've tried multiple solutions from around the web, from looking for the CCC GAC tokens (which aren't there), to, again, completely uninstalling and using driver cleaner and CCleaner to make sure they are completely off my comp.

Nothing else is wrong, CCC's main window just refuses to load.

I'm running with 2x5770's Crossfired, which is one of the reasons I wanted it to open, as Crossfire has turned itself off somehow. I'm also using the 11.12 drivers from AMD.

Any help is very much appreciated, and thanks in advance.