Support My S3 display turns off while I'm playing games.

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http://androidforums.com – Didn't used to do that on my Nexus One. I have to constantly touch the screen to keep it from shutting off during levels of various games. I could raise the time it takes for the screen to idle, or I could use that eye recognition tool that keeps it from dimming, but I was hoping there was a simpler way to fix this since it's probably not supposed to happen? (General)