I am running an HP TouchSmart 600 1050 all-in-one over a Linksys WRTU-54TM wireless router connected to a ComCast modem. When I try to connect to my wife's Toshiba notebook running Windows XP, it will not let me connect saying I am not the administrator. However, I am the administrator on both computers. I can connect from the laptop to my HP and read files. It is only going the other way where I have a problem. Has anyone had the same issue? If so, how did you solve it?