Stay away from the 2.4 update for MAC. It royally screwed up everything. The only thing right it did right was keep the new skin.
MAC UM 2.4 Home would not work. Period. I uninstalled it and deleted everything from the .ultramixer folder. I then reinstalled 2.3.8 from scratch, including importing iTunes library all over again. and now it does not work. It will load from archive into player. After relaunching the program the ONE song I tried to load was loaded, but it WOULD NOT PLAY.
$40 down the drain!!!
I’m going back to iTunes.