I can't get my computer to activate my HP all-in-one printer (4100 series). When I check Task Manager, I find that a related program (spools-something-exe) is occupying a huge percentage of my CPU capacity, but the printer remains inert. The "copy" feature works and the "ready" light is on, so I know the printer is functioning. I've tried Windows-XP troubleshooting procedures without success. I know the printer is online and is designated as the default. The problem first appeared a couple days ago when I tried to print an email. I've tried to print a test page (from the printer and from WordPad) but without success. Ideas?