Patches and discussion for Ensoniq VFX family

I just bought an SD-1.  It seems like the pressure feature is not 
working. With the pressure set to either chan or poly, I cannot get 
the pressure to affect the pitch (or anything else).  I'm dealing 
with a single wave, and have pitch mod modlevl set to 50.  If the mod 
source for the pitch mod is anything other than press, it works as 
expected.  With press, there is nothing.  Key sensitivity is set to 
med-2.  Is there another setting somewhere that might be causing 
this? Is there another way to test this?  Any ideas on what to do 
next would be appreciated.

meBigGuy