In the My Garmin Devices window, any mounted disk shows up. This is a good thing if you want to work with an SD card or USB stick, but it causes problems with network-based Time Machine disks -- a fairly common Mac setup.
If Time Machine starts a backup while BC is running, the disk shows up in the BC window. Other than this looking strange in a window titled "My Garmin Devices," not a big deal. But the problem comes when Time Machine tries to put that disk away again. If you are running BC in a non-admin account on your Mac (good practice), it will pop up a dialog box to ask you to log in as an admin and then even if you do, a second error message appears saying the disk is busy and cannot be ejected.
This doesn't seem to hurt anything, once you dismiss the error messages, but it's a loose end that would be nice to have cleaned up.
Thanks,
-dan
