How to fix library problem?

[Skywatch]

Hi,

I moved a HDD from one pi (USB) in the roof space (it was getting very hot) to another pi on the ground floor. I then changed the libraries accordingly to the 'upstairs' pi.

The video and TV shows went OK, but the music one is now a problem. I have tried removing the source, cleaning the library and then re selecting it but the issue remains.

It happens during browsing in library mode that xbmc/xbian/pi will lock up. Even the clock dosen't change. I have left it for 20 hours to see if it was still doing something. It DOES respond to SSH and I can reboot it and all is well again so long as I don't use the music library.

Is there a file I can delete with the music library contents in to see if that will cure it? If so, where is it?

See my user profile for details of the installation, I am using 1B1.1

Thanks

Skywatch