Is it possible to run a Virus TI Snow and a Virus TI2 Desktop at the same time through USB?

Hey everyone,I am having a little bit of trouble in my sequencer

I own a virus ti snow and i recently borrowed a virus ti2 desktop from a friend of mine, when i have both units turned on and attempt to run a seperate VST instrument in cubase 6.5 with the virus TI plugin so i can operate the TI2 Desktop the Snow channel comes up as "please connect an available virus ti snow via usb" even though i have both plugged in and turned on.

Is it possible to run 2 virus ti interfaces at the same time in 1 DAW ?

Cheers for your help.

In my current project i have an instance of Virus TI SNOW plug in activated already.

After i add a Virus TI plug-in and attempt to open the virus snow plug in, the snow interface states "please plug in a virus ti snow through USB and turn it on", even though both my units are plugged in and turned on before the DAW is opened.

I can screenshot the problems to better explain if need be.

i dont think i can run both the Virus TI2 Desktop and the TI Snow through usb as i believe they both use the same USB driver. From what i can see through my devices / drivers panel in windows, whichever unit is turned on first is the one that will use the USB driver. the 2nd unit will pop up with an error symbol (exclamation mark in triangle). When i troubleshoot the error, it states that the USB driver is currently in use / not available.