Using Pro Tools With An Alesis X2
 

I am trying to use Pro Tools with a mixer (Alesis X2) and when I do I can't hear any background noise, but it shows that there is noise from Pro Tools on the mixer. I've tried changing cables and making sure no other cables are touching each other. Please Help! I am using Pro Tools HD 3 with Pro Tools 8 with a 192 I/O. I am using Mac OS X 10.5 on a Mac Pro.