DJM 900-NXS2 crossfader problems

I'm having a serious issue with my cross fader in my DJM 900 NXS2.  When playing a song on deck 2, (left deck) with the cross fader all the way to the right I still have sound from the left deck, the same think happens when reversed i.e. music on deck 3 right deck and cross fader all the way to the right.  What's also happening on the left side of the cross fader about an inch from totally closed the right deck kills then all the way to the left the right deck comes back on.  The A side and B side selector on the mixer are in the in the appropriate position to work in this configuration.