Doepfer

I am tring to control a Korg MS20 from a midi keyboard by using the A190. Its 
working ok but I have a few questions.

if I play a note on the midi keyboard there is silence until I let my finger off and then 
the note sounds. I figure this is some sort of reverse polarity or reverse trigger or 
something but cant find it. I have tried a few midi keyboards and its the same so I 
know the prob is with the A190.

Also sending these "program changes" into the A190 - what is the correct way to do 
this??? do you just go into edit mode on the A190 and then select the program on 
your midi keyboard and press enter and that it??? cause it doesnt seem to work and 
there is no way to confirm its working. Any help would be apprecieted.

thanks