I have installed a bluetooth mini dongle and transferred some MP3 files from my main PC, however I cannot succeed in finding where they are being saved. Indeed, every time I do a search, this returns non findings but if a transfer another file, the multimedia player lists all the files I have trasferred so far and I can choose which one to play. As soon as I close it, these files seem to become invisible. This until I again make another transfer. How can that be? Markus