I had the same issue with my setup. I finally went to two buttons. The first is an all on. It doesn't really turn everything on just the common pieces i.e. the projector and receiver. I then go pull down my screen, grab the DVD or whatever else I need then I use the remote to "watch tv" or "watch dvd" or "play xbox" . I embed the projector format, the receiver sound decoder, etc in those buttons.

Not pretty, but it works for me.