I have a PC with Vista installed and want to share one of my hard drives to a couple of XP Home machines on my network. All 3 PCs are on the same workgroup. I have all permissions set as "Allow" under the sharing options. The XP PCs can "see" my computer name under the workgroup computers but when trying to access them it asks for a username and password, but I have no password set on the Vista PC. I tried just to enter my Vista username but it would not allow me to access it. How can I share/access this drive?