I was using my Chumby, the screen was black and I couldn't bring up the control panel, so I assumed it was looking for the network (I was in a place that is on the edge of connection.) then I heard an odd, quick sound from it. Now, whenever I turn it on, The screen flashes white and then to black, accompanied by that strange sound.

The chumbilical is plugged in fully, so that isn't the issue, and its on wall power, not just the 9v battery.

EDIT:After shutting it off for awhile, it starts up again, but will this happen again?
EDIT2:But there was that" Oa" thing in the eyes, so I touched the screen, restarted to normal operation, and right before it rebooted, it made a high-pitched sound like it was going to explode