EXS 24 Logic Sampler Users Group

I just bought a new M-audio Radium controller keyboard.  I have tried 
to use the knobs on the keyboards to control filters etc in exs 24 
(and also a couple of other logic synths).  

Nothing happens.  

However, I am able to make the knobs control resonance, cut off etc 
on other vst soft synths within logic.

I have tried assigning the correct controller values to the knobs on 
the keyboard and midi info bar in the transport bar shows that data 
is going through.

Can anyone help/suggest anything?

bryn