Ok folks, after much beating my head against a wall, I finally figured out how to fix this pesky error for trying to connect to your PC from a Mac. I am using XP SP2. Do the following from the PC: Control Panel>Administrative Tools>Local Security Policy within that window go to Local Policies>Security Options There is an entry called: Network access: Sharing and Security Model for Local Accounts Double click it. Select from the drop down menu: Classic - local users authenticate as themselves Viola! You can now connect to your PC.