Sliding - easing menu problem, fla included!

Hey!

First off, the Sliding menu tutorial is excellent! I am having a small problem, though. I’m only using 4 panels, and I thought I made all the proper changes to the actionscript, but the file is doing really odd things when certain button combinations are pushed, sometimes sliding over to endless blank space and other times going to the wrong slide. Can anyone tell me how to fix this?

The file is hosted here: http://zeldacurio.com/newconstellation.fla