Along the drop down menus at the top - file, edit etc.. under "tools" (or system? can't remember) you should find a option "inputs" - in here make sure the green light is on beside all the inputs you want to use. In my case, I have 4 pairs for a total of 8.
This enables the inputs - But - you also have to do something else.
In the Monitor view - this is the mixer view. Above each fader, at the very top there is a little button, that will say 1L or 1R. While holding down the CTRL key, left click on this and you should be able to change it to whichever input on the card you like.
For example, you want to record, a kick, snare, left overhead, right overhead.
Fader 1 - 1L
Fader 2 - 1R
Fader 3 - 2L
Fader 4 - 2R
Fader 1 corrisponds to input 1 on your card
Fader 2 input 2
etc..
In the arrange window, click the record enable button on each of the tracks.
Hope this helps.
[This message has been edited by Emeric (edited 07-22-2000).]