I have a home network set up with 2 pcs and a laptop. On my main pc I have xpsp2 and on the others xpsp1. I can see and access shared folders on the other units from my main pc running xpsp2, but when I try to access the main pc from the other 2 units I get prompted for a password. a box opens with my user name/administrator in the user name field and a blank spot to enter a password. I do not have any of my pc’s set up for passwords. or I get a message saying my main pc is not accesible and that I may not have rights and to contact the administrator.