I have been having some problems with my power jack connection on my JBR. I took it apart today and reflowed the solder around the DC input and cleaned some contacts. After putting it back together the power issues seem to be resolved. Everything powers up and I can navigate all the menus and view all my music (USB mode works perfectly too). However, when I try to play a file, it just sits there at 0:00. I can seek into the file, but it still never plays. Has anyone encountered anything like this before? Any tips would be appreciated.