I have several external drives. One of them, the 1st one I often had problems with & LW didn't seem to work with it very well at all. Nobody seemed to upload from it & everytime I opened LW I'd need to re-add it. But that was a 'lemon' of a drive. The others are better. It would also cause some freezing for another p2p program I used. I presume your drive is USB2 or FW400/800 & nothing slower.