Hi, I have just setup a new HP computer based on AVIDs "requirements" in conjunction with Pro Tools 9, Focusrite Sapphire 56, and a Mackie Blackbird. All computer settings have been set as Avid recomended on their Windows 7 Optimizations setup. This is the first time using Pro Tools but im on day 2 with everything up and running and recording except... My Pro Tools 9 is seeing ADAT exactly 2 off of whats actually the ADAT signal. For instance, ADAT 1 from Sapphire which is accepting the first mic from input 1 of Mackie Blackbird is actually ADAT 3 on Pro Tools. Than ADAT 2 out of Sapphire is actually seen as ADAT 4 in Pro Tools and so on for the next 6 signal connections. I setup the inputs on the front of the Focusrite to show the ADAT 1-8 inputs from the Mackie and that is correct which is weird. Hookup/Setup is Focusrite as interface to Pro Tools with ADAT 1-8 feeding from Mackie Blackbird ADAT 1-8 out into ADAT 1-8 into of Focusrite, than its ADAT 1-8 from Focusrite to Mackie to do clocking in Focusrite and Mackie as slave. ANY SUGGESTIONS? I will pick up a couple new fiber optic cables tomorow is all i can think of. ???