Personally I would recomend and choose RME HDSP 9632 anyday!! :)
http://www.rme-audio.com/english/hdsp/hdsp9632.htm
I went on terratec's site and u can see that u probably have a less then perfect instalation... Up date the driver, also maybe u should re-install Sx just in case... if both are all rigth then u should b able 2 find the terratec Asio Driver in cubase config pannels!!
from the site"...WDM driver for Windows 98SE/ ME/2000 and Windows XP Supports ASIO 2.0 ..."
Click here 2 go to the download drivers page
Version 5.4
Click here 4 DMX6 Cubase SX tutorial
This better work... I hope it's just a RTFM prob!!!**
From they're FAQ ...
Question 17:
Does the DMX 6fire work together with Cubase VST from Steinberg?
Answer 17:
Yes. Especially by using the ASIO 2.0 driver very low latency time will be possible.
Question 18:
Are there any special points to consider by the installation of the DMX 6fire under Windows 2000 or XP?
Answer 18:
It is strongly recommended that you log on these systems as "Administrator". Otherwise it may be that speaker configuration can not be changed.
Let us know!
Z
** Read the Friggin Manual ehehehe :P ;)