appeared on a spare computer running XP (all patches) once. PC booted up normally and after a couple of minutes, the screen went blue and the following comment appeared: bad_Pool_Counter along with some words that this showed up to prevent damage to the computer. The PC was shut down then rebooted and the message no longer appears. Virus scan (Norton) and other diagonostics show nothing. Can't find anything about this message on the web. Any thoughts?