My 2TB Time Capsule is full and wont backup. It also won't free up space. It was stuck on "...freeing up space..." for over 24 hours and nothing. I restarted everything and tried several different times, same problem. I tried to erase the disk, but I was presented with a message that said I couldn't do that. I tried freeing up space manually through Finder, but was not allowed. I tried freeing up space from entering Time Machine, but that was very tedious and not very effective.