I finally got my oc cards to work, my usb and master are both working fine in the sioc screen. I loaded my first script, an on/off switch command for the battery master switch. The assigned terminal responds to the command in sioc. I don't know how to assign the switch in FSX. When I go to the switch assignments in fsx, the usb/master does not show as an option. I have installed fsupic and it shows active in the sioc screen. What have I missed?