OK, all good. Running from a local disk seems to be the go. Also, it all went without a hitch (I suppose, havent reconnected to TV yet) and I did not need the power to be connected. Just the USB.

These two programs have not worked from the beginning, and I have no idea what else to try. NOT the one that you have to download manually from the Boxee website.

[edit] KACK!!! It works with the TV. That is, everything except Home Sharing./ I've turned it on and off and on, on the computer but the ATV is not registering that it exists. Thsi is a pain, because I hit the pay button to get ATV Flash (Black) before checking that all was working.

Next step.reboot and see if that helps.