Topic: Digi9636 Windows XP Cubase SX1

New to this site. Have contemplated RME for many years and just received this card.
I am stuck on SX1. I am comfortable with SX1 but the RME is completely new to me.
   I don't have much in the way of interfacing although I have a Ramsa CA7 to pick up next week.
In the meantime I would like to understand the card.

I am running spdif from int. ST4 connection to ext. DAC which is actually spdif in of my M-audio fast track pro.
It works fine using mme but it is very slow.
When I switch to ASIO, there is no activity at all