AlienFXHook32Mngr.exe intrigued me, for several reasons. It seems that this is a program used to overlay alternate desktops on windows through a method known as hooking.

Furthermore, it seems that the Alienware hooking software has a history of causing some issues similar (not identical) to what you are experiencing (including the sort of driver crash that -can- cause the error you are receiving.)

Sooo... I would suggest a test. Try turning off the overlay program (uninstall it completely if you don't use it) and see what happens. I wouldn't go so far as to say this is a slam dunk, but I don't think that is is a long-shot either.

I would be happy to explain the technical reasons of what made me suspicious, what hooking is, and what I found about the software on Google if you would like. Hopefully this will solve the problem!