So, my mom and I are having loads of fun setting up her new Dell Inspiron 518 running Windows Vista Home Basic. With this computer, we have attached the HP D2545, and it is functioning ultimately dandy on her computer.
Problem is: on my eMachines W3611, also running Windows Vista Home Basic, I am trying to connect to this printer for my own use, and it requests a password to log in to my mom's computer before I can access the printer. The same is true if my mom tries to access my computer through the network. Her account does not have a password set, nor does mine.
When my mom had an XP computer, I had to fool the printer (attached to the XP computer) into thinking it was on my eMachines W3611, which worked. During this time, also, it did not request any log-in information to access public files or printers on the other's computer.