Problem with Virus Os change!!!

[Dj Shy]

Hi people, I'm pretty a newbie in here and I tried few minutes ago to search for my problem through the SEARCH function but, no results were displayed, even if I tried with several combinations of words..

so I'm heading you with my problem:

I own a Virus TI keyboard and using Cubase 4 as sequencer.

The problems is simply this: I can't open 2 sound device of my Virus since, of course I have established only the USB link from the Keyboard to my pc.

I'm also a newbie in making music so I maybe don't know such basically or easier way to solve this problem. Someone told me about freezing the device I opened but Cubase says that "Freezing is not available" for Virus TI.

I know I can open more and more sound into the inner Vst ('till 16 patches, isn't it? ),burt how do I let them sound??
Assigning each sound device to an own BUS of the Virus was my solution, but then when I "play" the song into the Sequencer it always sounds ONE bus. (it's a lil bit difficult to explain to you the problem, hope u could get it as well)