Help needed - DDJ200 - Rekordbox

Hi

Recently I've hooked up my speakers to my laptop and DDJ200 and all has been working fine.

Now my speakers have went into some sort of quiet mode (we'll call it that).  In the audio settings on Rekordbox, the setting is on speaker/headphone.  If I change this to speakers, then the sound from the speakers return to normal however there is no sound from the headphones.  These are the only two options I have to choose from. 

Any ideas?

Thanks