I am having trouble with duplicate files in my music library. I use JRiver to organize and sync to Cowon X9 (see my post in the devices forum for that fun time). The problem is that now I seem to show duplicates every time I sync or modify a playlist, one for my local library and one for my device. Does anyone know how I can either prevent this from happening or at least filter so I don't have to look at this junk?