Please have separate buttons for the volume. Half the time the down button won't work, even when pointing directly at the box. I have to press and press it, it may go down a notch or 2, then stops, while I'm still pressing it, and with individual presses. I've had a Roku tv and remote for years that didn't have this issue, but this one does. Separating the buttons would fix this, I think. It's so frustrating.
