Reply to Crossfader Issues

Ok, so I upgraded my Traktor Pro 2 to the Scratch Edition last evening and set it up so I have the s4 running with with decks.

I went for the 2 channel Live 2 channel s4 option.
Basically means i can play my vinyl on decks through traktor which is awesome and then still have 2 channels of digital for all my tunes i have on the computer so in theory i can mix vinyl with mp3 etc.

Issue I came across when setting up is the far left channel plays when the crossfader is on the left side and volume up etc and then when crossed over it cuts out as it should. The right deck on the other hand plays what ever, even if the crossfader is fully left and the volume levels down!? So you cant mix or que as it just plays over the master?

only seems to happen with this deck, the left and then the 2 digital are fine also.

Any ideas??

Cheers
Jon