I'm on a MacBook Pro running Lion. During a Keynote presentation that's running in full screen, I'd like to be able to switch to a different desktop with the four-finger-swipe gesture to demonstrate a Web site with Safari.
I tried putting Keynote on desktop 1 and Safari on desktop 2, and then starting the slide show. The slideshow appears full screen as usual. If I swipe over to desktop 2, Safari is there, but the screen blanks for a moment. When I return to desktop 1, the slideshow isn't there. Keynote is running in the Dock, but no slide appears.
This seems like a pretty common thing to want to do, but I can't figure out how to cleanly swap between the full-screen slide and another app. We used to Cmd-Tab between Keynote and Safari, but when returning to Keynote, the slide would rebuild instead of being where it had ended up.
Any help would be greatly appreciated!