How do I change to another application while showing a keynote without exiting?

I want to change to another application (VLC) while showing my Keynote and do not want to stop the show just chaneg back and forth. How can I do that?

Michael,
Have Vlc or whichever app you will leave keYnote for sitting behind the slide display before you start your show. This could include a browser with multiple tabs so you can slickly move around the web even if you don't have an Internet connection at your site. Just make sure you set it up before you leave for the presentation.
Now, when you're ready to leave keynote to play in vlc, hit the H key on the keyboard to hide keynote and bring vlc to the front. If you can see you dock keynote will appear with an arrow in it to indicate it is in hide mode. Just click on it to once more bring keynote back to the frontmost app, usually back into your presentation.
Some of the more fancy remote control devices can let you map the H button so you don't need to be at the keyboard for this to happen.
Les Posen
Presentation Magic

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FW

It was one of the last two Security Updates.
To stop the pop-up, Go to System Preferences: Security. Check the box next to "Require password to unlock each secure system preference." Then lock Security.
Try this cure for Security update...
http://discussions.apple.com/thread.jspa?threadID=1730909&tstart=0
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I have been getting this error (on keynote as well)
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I am only working on this doc on my MacBook Pro (Ipad is OFF),
not running pages on my phone
not logged into iCloud in safari
document saved to my hard drive (not iCloud or dropbox)

Getting the same message. Started with the latest update a few days ago. So I guess it's a glitch in the current version and hope Apple will solve that soon by issuing another update which fixes that. It's really annoying and makes it quite impossible to use the application at all.
Meanwhile open Pages, go to Pages, Provide Pages Feedback, choose Feedback Type: Bug Report and explain the problem in the Comments box.
http://www.apple.com/feedback/pages.html
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This snapshot is from the informative link: http://krypted.com/mac-os-x/lions-versions-feature/
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Hi Tony,
That's been reported here before, and it's happened to me. Maybe not exactly those words, but something similar, at least. I've always ignored the warning and have had no ill effects to date, that I am aware of. Nor have I ever figured out what the message may have been caused by.
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Try this cure for the Security update...
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This is to report a wierd behavior when pages is auto saving documents.
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How do I change to another application while showing a keynote without exiting?

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