Atomizer in Cubase 5 problem

  • Atomizer in my TI Keyboard "crashes" or stops working shortly after seting up in Cubase 5.
    I am running Windows XP SP3. I found a very good tutorial on how to set up Cubase with atomizer - http://www.youtube.com/watch?v=u54CCV-zOEA
    and got everything running nicely using the USB cable only. However,it doesn't take long before there is some sort of crash (usually accompanied by digital feedback) and from that point I loose the audio track that is feeding the TI FX and no midi data can be transmitted into Cubase.
    From this point, I cant seem to get anything working and not only have to turn off and on my TI, but also reboot my OS. Cant find anything on the forum - can anyone help?