When you first add a folder to the Mesh from computer A, it is offered to the other devices in your Mesh. That happens when the other devices next connect and causes a placeholder blue folder to appear on the desktop of those other devices. You then click the blue folder and select where to Sync that fodler to. If you choose to sync to an existing or new folder on that Device, it will cause the blue folder to disappear from the desktop as it sets up the other folder as the sync end point on that device. If you choose to accept the default location, it ends up with the Sync point being that folder on the desktop. There have been suggestions to change this behavior, allowing one to select the default sync location for new Live Mesh folders on devices -
Live Mesh Beta: Suggestions - Go cast your vote!
Currently, this can't be changed.
If the other devices are not connected when you add a new folder to the Mesh, you can go to the Live Desktop and set the sync options to *not* sync with a device or devices in your mesh and it will not be offered to that device on the desktop.
-steve
Microsoft MVP Windows Live / Windows Live OneCare & Live Mesh Forum Moderator
