I too had a problem with the USB which RB fixed very quickly to their credit, it goes everywhere I travel, and must have at sometime put stress on the USB port which is only fixed to the circuit board, not the outer shell. It was returned very quickly, fixed, and since then I have "isolated" the unit by placing it inside a clear VHS video box and buying a small USB male / female patch lead and made a 3 inch SMA lead with parts from Maplins, cut holes in the side of the VHS box to run the cables through when shut and glued them in place, so now I can never damage the actual connectors on the box, and some Velcro keeps the unit in place in the box.