Why jpg why not gif?


Here I am once more to get some help from you :sigh:
What I need help is:

I am making my portfolio and there´s a section of it that I put some photos which I want the user sees it through actionscript. So I used loadMovie. So, the user rolls the mouse above the thumbnail and the photo (the big one) is suposed to appear. The problem is: If the photo is a jpg ok, everything works, otherwise, if the pic is a gif it doesn´t work…
Have I made anything wrong or the loadMovie only work with jpf or swf…

Waiting you answer, :ear: