Thanks for confirming what I'm seeing too on a GTX 550 Ti. I've been folding without any problems when I stopped Windows from turning off the monitor (which I do myself anyway).
EDIT: Note I also disabled PCIE Link State Power Management just as a precaution. I wonder if AMD's Zero Core power will start blowing up as well?
...looks like F@H is going back to being high maintenance... This bug cost me a pile of debugging time moving my GPU between computers, and had me get another PSU when I didn't need it
