Problem with "." and "," characters. (AS3)

When playing game, characters , and . on the keyboard are switching the frames just like in Flash Professional CS5. I want to disable this ability to be able to track keyboard events including these two symb开发者_Go百科ols. How?

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as . and , are used by the built-in Flash Player to Step Forward One Frame and Step Backward One Frame, if you want your application to have access to these keys you have to Disable Keyboard Shortcuts when testing your application.

Control > Disable Keyboard Shortcuts