I have a printer (HP C4280) connected to a Time Capsule, in a mixed Mac/PC environment - two Macs, two PCs. One PC has Vista, the other XP. All four systems can access the TC hard drive. Bonjour is installed on all systems and it "sees" the printer on all systems. Whenever I try to print from the XP system, however, it says "this document failed to print..." All other systems print fine. Just for the sake of elimination, I currently turned the firewall completely off on that computer. There's still some issue with how XP handles printing that's hanging this thing, and I need a bit of help to figure out what.