I not only rebooted the entire network but I reloaded the HP Printer Driver Suite before doing so.
After shutting every machine in the network down and bringing the system up modem first, then router, etc. I then tried to load the printer on the Vista machine. It still says ACCESS DENIED - I can see the printer, I even connected the printer directly to the Vista machine, downloaded the Vista drivers and got it working. But when I took it back off and tried it thru the network, I got the same Message after choosing the printer - Access Denied.
Help??