I've got a Harmony 900 remote control (1.5 months old) that I cannot update now with Lion. I could update it fine Snow Leopard. The remote should power up without the battery when you plug it in with the USB cord. I've tried it on both my MBP which has Lion also with the same results. When I plug it in with the USB cable and no battery the screen kind of flickers but it does not power up. I'm not expert but thought since I just update both machines and I get the same results on either one something was changed, but I don't know much. My remote works fine but I needed to make some changes and since I can't get it to connect with my Harmony 900 I can't update it. Ideas?