I have a feeling this will be a very simple thing and I'm gonna feel stupid...... but.........

First off......I haven't touched anything, honest............ but, when I select the Chord Builder nothing I press plays the sound of the chord, in fact there is no sound coming from it at all. Same thing goes for the drum set window, when I click on any of the drums there is no sound and no error message.

Everything else seems to be working OK.

Any ideas on what it can be?

Thanks