No sound output through my XDJ-RX from my laptop.

 Hi... Recently I lost sound from my laptop going through my XDJ-RX... Sound from software like Rekordbox & Traktor come through OK,,, But things like Beatport & iTunes doesn't... I checked the devices and the XDJ-RX there and up-to-date with version 2.10, it says the drivers are up-to-date... I'm using Windows 10... When I test the device I can see the LED lighting up on the computer or when I play music from iTunes I can see there is sound there but it just doesn't come out of my XDJ-RX... I must have everything turned up as like I say, when I play Rekordbox I have sound... The only way I can get sound now, is by turning of the XDJ-RX and play through the laptop speakers or the plug headphones in to my laptop... It was working fine a few weeks ago but suddenly didn't.. Not sure if I've pressed something or need to change anything, can anyone help?