Menu text problem

Hi
I’ve a little problem with my flash menu

I created a header with menu/button with static textfields
On my computer and on alot of other computers the menutext is visible and works fine.
But i got a call that the menu’s are visible but there’s no text on it. So they have to figure out which button is doing what. They can click on it and they also get to the destination of it.

Flash header/menu is embedded in an html/php document and works fine on some computer and on some it doesn’t.

Can someone help me with it

Thanks,

monolite