i am running 7.4.1.5.  Oh, I am new user. I have set my chosen background as my default song theme.  However,  when I bring up any of my  approx 2500 songs they all show a black/blank background. I can assign the bakground to a song manually.  For a on the fly request during service, I really need it to use the default background.  Don't want the delay to do it manually.  What am I doing wrong