MIDI syncing Virus C to cubase -> can't use keyboard anym

[noshado]

I want my Virus C synced to cubase VST. I have a Evolution keyboard and a 2x2 MIDI sport.

I get the sync working, but don't seem to be able to get the keyboard working anymore.
Hooked it up this way:
cubase sending MIDIclock through MIDIsport-> MIDI in on virus. I see the clock messages coming in on the virus. I put the evolution on USB in my laptop and see MIDI coming in, but it is not being put through on the Virus. I also tried putting the keyboard on the MIDI thru port on the Virus, withouth succes.
Strange is that I am able to play the virus with a software MIDIkeyboard using MIDIyoke.

What am I doing wrong here? Why arent the MIDI notes from my keyboard coming through on the Virus? (the keyboard does work if put directly into MIDI in on Virus).

Hope you guys can help me out! tx in advance, grtz. Noshado