A while ago I successfully installed aTV Flash and had an external drive hooked up and everything worked great. Last night my external drive died and I turned off my ATV and then turned it back on to try to tell it to use the internal drive. When I turn it on now, it goes past the demo mode and then the screen turns black but no menu's come on. When I click the remote buttons, I can hear the speakers make their clicking sound. I then tried to re-flash the aTV software off of a USB thumb drive, I saw aTV logo stating it completed the process and to remove drive and restart the ATV, I did and it still gets to the same point and will not go further. What can I do???