GIMP 2 Help - Transing a background

[_Rave_]

I tried to trans a background in GIMP 2, but when I flattened the image so I could save it as a .png, it gave it a white background.

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[Marcem]

Remember to add an alpha channel.

[_Rave_]

Remember to add an alpha channel.

Thanks

Edit:  I tried it, but it still wont work.