ok so i decided i wanted to get a box that i can control with firewire, so when i went to the local comcast office to pick up an HD box they gave me this DCH3200, when i was hoping for a 6200.
but anyways, i connected it and followed the guide at https://help.ubuntu.com/community/MythTV_Firewire to install it and i had it working, when i started watching that tuner it showed video for a second, and then out of nowhere it stopped working. now whenever i go to that tuner all i get is a black screen for a minute before it just kicks me out to the main menu.

anyone have any ideas how to fix this?

-Thanks