Its my understanding your the man with some answers, and some answers would be greatly appreciated.
Heres my rig:

Cubase 5.0
2x2 midisport usb to midi port
(1) sampler
(1) sound module
(2) KB controllers

I can't get cubase to allow me to have 2 different controllers controlling 2 different sound modules on 2 different midi out ports on two different channals. Cubase only allows one channel selected at a time. And thats one channal on one port. I want to be able to use two different channels on two different ports to control my modules.
Hooking one controller up to the in port A and one to the inport B does not work. The problem lies in cubase as it wont allow me to play multiple kbs.
If you can help me, that would be great.