I was setting up my studio for the first time last night and for some reason I wasn't getting any signal. Let me list my equipment:

Mackie 1604 VLZ Pro mixer
>MOTU 24I/O
>PC with a P4 2.4 w/a P4PE motherboard running Nuendo 1.5

I got signal into the mixer and the MOTU but no wave forms appeared on Nuendo.

I suspect it's something really simple that I'm just forgetting because of stupidity. Any ideas?

thanks,
Nick