Holding the power for 10 sec's or more does not power it off. Under normal conditions it would, but this time it will not. I have scanned multiple times with McAfee Anti-virus, Microsoft Beta, Spybot, Ad-Aware...(I work for McAfee as a Virus Removal Tech, and I am sure it is not related). As I stated, I have removed all printer related drivers and reinstalled using both updates from the Canon and HP websites as well as letting XP install. Any other suggestions?