ALpha problem

Hi, I have a textfield with a alpha of 0.7 in my app. So you can see the background behind it.

Now this works fine when I test it and everything.
But when i try to run my app trough the .swf file
somehow everything in my project works fine, EXCEPT the alpha.
it just puts the alpha back to 1. Even if i put it to 0…

How do i fix this, or how is this happening?