Are infinite scrollers really so complicated?

Hoy!

Currently working on a scrollable mc of thumbnails which move inversely with the _xmouse position. The problem is that the mc continues to scroll back and forth while my mouse is moving around non-nav areas. How can I confine this? A good example of what I’m aiming for:

http://www.expressfashion.com/style/denim_lounge/looks_w.jsp?navid=1.1.1.1.1.0

(click on one of the for women or for men categories)

Ah the ease with which the clothing scrolls!

Much gratitude to anyone who may help,
Geez
:hangover: