I Have a pc running Windows XP Pro on a LAN with 4 other pcs and 1 Mac, the the computers (including the Mac) can view/edit the shared files on the PC, but the PC can not mount/logon to the Mac. I get a similair responce when attempting to logo onto the Mac as others have with Win98se. I have checked (on the PC) Config, Workgroups, IP setting, turned off, simple share is off, user accounts are identical. Have also goen through the Mac and ensured Sharing and SMB are active. The strange thing is i can share music from my Mac with this PC via iTunes.