We just got one and I'm having two issues. Any advice is appreciated. It's being powered by a USB port on the TV, if that matters. My issues are two fold. 1) The image is visibly darker than from other sources, such as the smart TV's internal apps and a Sony Blu-Ray player. 2) The damn thing wants to take over the input selection! When we turn on the system, it automatically goes to Roku and when we try to turn the Roku off, the whole friggin' system goes off. Now we have to turn on the system and change the TV's input! Wotta PITA It does a lot and has access to tons of apps. Aside from these issues, it would be perfect. Any help or advice is welcome.