Actionscript Help, FLA Included

Hi all, I’ve been working on and off on this portfolio-website for a bit and I’m running into a little trouble with the Actionscript. The site is a simple setup with 4 rectangles. When a button is pressed to open a page, the currently open rectangle closes and the new rectangle opens.

What Im having problems with is that sometimes the sequence will work right, but sometimes the rectangle will skip to the closed frame and automatically start opening up the clicked page. Basically, things are inconsistent and I cant figure out how to fix it.

I’ve attached the fla file so that you can see where i’m headed with this, I’m sure its something simple, but I can’t figure it out.

Thanks for any help!

Attached FLA File