Auguts 4th, 2012: Well, that bites. It appears something is wrong with my SunPCI setup. At first glance, it appears the problem lay with the external monitor, as the SunPCi works (more or less) when running in a window on the Ultra 5's display. I've tried jiggling the connection, disconnecting and reconnecting the monitor, but it doesn't seem to want to work. The monitor's controls don't seem to work, either, which leads me to believe the thing is toast. I'll have to grab my other LCD monitor out of the office and try the SunPCI with that...