I made a very simple drop down menu system. However once the sub items appear they flicker each time the mouse enters the button hit box. I really have no idea why this is happening

The menu is just a series of keyframe. The first contains large hit boxes with goto frame commands. When you mouse over a menu item it jumps to a key frame which contains the menu sub-items and another hit box with the rollout command going back to frame 1. I just don't get why the items flicker when you enter each button's hitbox.

Any suggestions are hugely appreciated!

Here is the site: www.childhoodstuttering.com

I can upload the fla for download tonight.