thanks for the tips! here's the problem...
first install...i get sound in one track in cubase. i close it, open another. no sound. no levels.
i open an mp3, i get sound! so i open reason, and it crashes. i reboot the computer, and start again...
...nothing in cubase, play an mp3, so sound, and the mp3 player won't move forward on the track. i don't even bother trying reason out.
shut down, reboot. now the driver for the fw 410 is gone. disappeared into thin air!