I recently purchased a new "tower" 2TB Time Capsule and I think I've uncovered a pretty nasty bug here. When I first set it up I formatted the HD inside it and renamed it from "Data" to "Time Capsule HD". When I set up Time Machine I selected "Time Capsule HD" and ticked the "Encrypt Backups" check box. I gave it a password and away it went. It did my backups just fine. Later on I rebooted (not reset) the Time Capsule. I noticed that my Time Machine backups were now failing. When I went to see what was wrong I got a pop-up (attached). But when I went to investigate I found the real problem. "Time Capsule HD" was nowhere to be found. And of the available disks only "Data" was available! It seems the HD was renamed back to "Data" with the "Encrypt Backups" check box unchecked. I guess I can avoid all this by leaving the name HD named "Data" in the first place but that just doesn't seem right. On my older Time Capsule I renamed the HD and had no problems whatsoever. Has anyone else noticed this?