The thing uses such little power I actually had trouble with it rebooting. Initially I thought I had a buggy MB. The best I could tell; there wasn't enough current being drawn to stabilize the voltage. I swapped PSUs (with an identical Antec NeoPower 430 I had in my son's machine), re-organized the modular cables to be plugged next to each-other to possibly move both to the same rail, and the reboots stopped. What I really want is a quality power supply that is rated for something below 200W. From what I can tell from the UPS, the power draw is between 15W and 90W.
I had a similar bug but on different hardware. Eventually I ended up manually installing lightdm 1.3.3. It fixed the hang problem.
Came here to say exactly that. Played Rescue on Fractalus for hours on the Atari 8bit.
Disk crisis, please clean up!