Flash png has native width and height but is scaled

i'm a flash beginner! When i import a png to the lib and add it to a movieclip, it has the origin width and height when i check the properties ... but it looks definitl开发者_开发技巧y scaled!

Why? How can i make it have the origin width and height?

Thanks for any advice!

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ok, i deleted the movieclip, made a new one and inserted the png again and now it has the right ratio ...