Shoutbox

well you mentioned that the other 2 PCs have windows xp SP2 installed from the manufature, and the P3 is SP2 downloaded, its just a guess, but the manufaturers may have loaded more drivers on the computers when they installed it.

another thing you might want to try is going to:

Start >> Control Panel >> Printers and Faxes >> add a printer

then go through the wizard, selecting the network printer option, as opposed to the localy connected printer option