Ok hang in there. The user that is logged into the XP machine, is that SAME EXACT USER administered on the 7 Machine? Probably not. So when you connect, you have to connect as a user on that local machine. So if you are attempting to gain access into the 7 machine, make certain you give the username and password of a user on the 7 machine. As the 7 machine does not know about users on the XP, and vice versa.