Spectratronics Omnisphere

Hi guys!
sorry if this is not the correct place to post this question.
I have installed Omnisphere but when I try to play a sound I hear nothing! :blush:
Could anyone give me some help? :slight_smile:
Thank you very much! :smiley:

I forget!
Cubase 5, Windows 7, M-audio keystudio


how exactly have you rigged it up? as in - is omnisphere seeing your audio interface? is the interface selected as an output on the instrument track?