My DP G5's HDD fan is spinning at high speed for no apparent reason and has been for the last 30 min. straight? Any ideas on why? I haven't tried rebooting yet, just trying to figure out what caused the fan to go nuts. Just some info. It's a rev. b Dual 2.0ghz w/ an external 120GB and An Elgato EyeTv200 connected. I haven't installed anything lately, it's a little warmer here in PA today, but nothing extreme. Nothing out of the ordinary in the way of system processes. Just curious if anyone has any ideas??