I have had so much trouble getting my win7 / xp network to work. On the pre release version, I just ran the wizard on my xp machines and they could talk to the win 7 one with no problems. Talking the other way took some time to solve, but it eventually worked. Now I have the paid for release version, and again it was easy to set up the network. Then the updates started coming, and I now never know whether my network will ever be working. On the xp machine, the win7 one does not show, but I can access all the win7 files. On the win7 machine, I cannot see the xp machine at all. On my xp lap top I can access files on both the other machines. All machines can access the net via my BT Home Hub. It changes daily. The IP addresses of both machines seem to change, but I cannot ping one from the other Is there any way that I can delete the whole mess and start over - or is this not possible?