Problem with Idigo2

[Epox]

Hi, for a while now i am trying to connect my Indigo2 to my pc. I have two sound cards, SB audigy 2 Zs and HDSP9632 [by RME] For some reason i can't seem to get it to work, no matter what software i use i does not work. When i set up my MIDI configuration i do notice that there is something happening when i press the keys, however when i try to record it does show the keys being punched and what not, however it does not play it, it's almost as no sound. i used it in Fruity loops, and Cubase, i have the same problem in both, when it plays i hear nothing. HELP