Duplicate Movie Entries in Library

[Altin]

I had a library of movies built up on my XBian which were located in a directory on my external HDD. In tidying up the folders on the hard drive I moved all the movies to a different directory on the same HDD. Now when I go into Movies or the Library in XBian I have 2 entries for every movie. Ive tried rescanning the catalogue and also selecting 'Clean Library' in the settings but it didnt have any effect, I still have 2 entries for each movie. How can i fix this?