How to hook up midi system

[Vegard]

Hi. I have the following equipment:
- standard casio keyboard with midi in and out
- Roland JB-1010 Sound module with midi in/out/through
- PC with 2x midi in/out

what more do I need to hook up my system? Computer runs with windows xp and cubase sx. I've heard that I need an mergebox, how do I connect this, what kind do I need, and do I need one at all?

hope someone can help me.

[altitude909]

Casio into the PC midi in, pc midi out to JV-1010, pc midi out back to casio (if you want to use its sounds, also local to off if this is the case). You could also thru via the roland back to the casio if you want to leave a midi out free