Hi, newbie here... I have a MX-2424 that has the analog and optical cards installed. When I try to change the input of the tracks to analog, it gives an error message "inputs not available" for all of the tracks. The digital appears to be the default, and 2 channel is working as well it seems. Is there an issue or conflict with having both of those cards in place or any other ideas? Cables are all hooked up correctly to my Mackie 32-8 (24 channels only hooked) and to the MX 2424. Any help or insight would be greatly appreciated, thanks!!!