Everything but desktop switching still works? Have you tried to restore the default settings? Go to "Settings > General > Profiles" and load the Default profile.

I had just pulled my computer out of sleep and started to mess around with some settings when I made some rules which would basically move CMD, Control panel and a few other things to another desktop which worked but as i tried to move to a different desktop it wouldn't work i was able to see the preview by right-clicking the icon on the taskbar and selecting the option but was not able to switch via any method including hot-keys and desktop preview. I then used task manager to force quit Dexpot and started it up again but still didn't work. I then tried to log out and back in and still didn't work. None of my shortcuts to do other things like blackout the desktop worked. I use windows 8 on an admin account.