[SOLVED] djm900 effects knob not selecting correct effects

Hello!

The djm900 we have is only a few weeks old. tonight i noticed that when i went to select [ROLL] it displayed [SLIP ROLL] and when i went to reverse roll it displayed [MELODIC] and after checking out a few of the other settings i noticed that many of them or doubled up or mis assigned. 

how does this happen and how can i get it back to its default assignments.