I am using RC1 on an HP Mini 2140 PC with 1024x576 resolution. I just can't work out how to set the projector and screen resolutions to different values. Projector resolution is 1024x768. If I use the "duplicate screen" setting, it insists on using the 1024x576 for the projector as well. The only thing I have been able to do is to have only monitor 2 turned on, and have the correct projector resolution but nothing on the PC screen. That defeats the effort. I want to use the PowerPoint feature that allows presenters to see speakers notes on the PC, but they are not on the projector. Second best would be to have 1024x768 on the PC screen as well, even though I would have to scroll down to see it.
Full disclosure: I am VP of enterprise customer experience for HP in Europe, the Middle East and Africa.