Good Day, I have two models of Wouxon; the 2d and 6d. I am able to upload from both radios without any problems. I can download to the 2d with no problems either. The problem I am having is when I try to upload to the 6d, the pull down menus for radio selection is greyed out and is on the 1d. (not a problem with downloading to the 2d). How do I un-grey the selection box so I can upload to the 6d?  Sincerely, Mark Cameron