multitimbrality with Virus A and Cubase SX3

[Franklin van Uden]

Hi there i am terrible new on the hardware synths matter, so take it a bit easy on me

I have one problem though when i want to set up multitimbrality in cubase for the access virus it doesn't seem to work, i must be doing something wrong (a setting on the virus maybe ?)

What do i do ?

I create 3 midi tracks which are routed to the virus A midi output, each midi track i send to a different channel (so midi channel 1, 2 and 3). On each channel i choose a differend patch out of the virus's soundbanks.
Only the first channel plays a sound the two others are dead, i see midi data is being received by the virus but i don't hear a thing (when the first midi track is muted).

What is it that i forget or don't know here ?

Any help is appreciated very much!