Windows 10

Version 2014.5.6359

Whenever I playback my compositions/arrangements created using Finale the sound is garbled by static. The vast majority of the time I am using Finale I use headphones. I use Beats wireless over the ear headphones and I have tested them with other sources - my iPhone, other programs on my computer, such as YouTube, iTunes, etc., are okay whether I use my computer speakers or the headphones. But the sounds from Finale are made unlistenable. It was suggested by a friend (another Finale user) that I reload the software for the musical instruments. But I didn't order the CD when I upgraded from the previous version. What do you suggest I do? I don't know if this is a problem with Finale or Garritan.