DDJ 1000 & Rekordbox suddenly stop...

Hello everyone.  I don't know if this is an issue or if it has been solved, but whenever i'm in the middle of mixing music Rekordbox suddenly stops along with DDJ 1000 and becomes unresponsive.  It's not until I turn off the DDJ-1000s that rekordbox continues playing the music i was mixing, so i need to restart Rekordbox and DDJ-1000.  Any clue as to what's going on? and yes I've already updated to the most recent drivers and firmware.  Thank you.