You are right, some users said you could hot swap cards but I found this problematic even when it was scanning properly. My files are all meticulously tagged and organized, but I bought a new 32gb card and used it to eliminate my other cards as being the problem.
Yes I have reset it a number of times. It will scan and come back with a few of files on the card, but with nothing in the folders. It worked great straight out of the box and I have not changed anything, same cards and same files it scanned fine at first. I would be very happy with the DX50 if it operated, it sounded great on it's own and and fantastic with my PB2. The gapless worked great as well!. Thanks for your replies gents.
I would install the firmware again. Maybe install the most recent FW. I haven't been having any problems with the latest.