I have been using the pogoplug for some time. It's hooked up to the airport extreme and works perfectly. 

However, recently I have been experiencing some problems. I keep getting the error -1401 in itunes and I think it is related to the pogoplug. 

I try looking in finder and the music folder is visible, but it does not show any files / folders. No timer showing it is looking in finder either. 

So i usually just quit Pogoplug. Strange thing is that the drive that causes the problems remains visible and the only option is to unmount the drive and restart Pogoplug.

Sometimes if I start itunes before going into the folder where the music is stored on the pogoplug itunes responds it cannot find the itunes library.

The drive is windows formatted which could be a reason for the problem, but I would be disappointed if it were.