Hyperlink within rollover text of a button

I have a button which on rollover reveals a textbox with some static text in it. I’m trying to get a sentence of that text to hyperlink to a website but the whole rollover flickers when I try to click on my hyperlinked text. I’ve tried just highlighting the text and using the static text hyperlink feature. And I’ve also tried just converting the text I need into it’s own button with it’s own on release, getURL function but both these methods result in a flicker. One more note is that my original button is linked to play another frame in the movie.
Thanks,
Frank