Slight 'mouse follow with easing' problem

im using the excellent tutorial by lost in beta to make a horizontal scrolling background, kinda like the one at orangesherbert.com
the thing is, i have 3 layers that will scroll back and forth and each layer is a little longer than the one before it so that it scrolls farther than the one before it to give it depth. the problem is that the first layer, which is the shortest, is scrolling just as far as the 3rd layer and showing the edges of the picture. for being such a short piece of code it sure is giving me alot of problems. i’ve spent hours trying to fix this without any luck, can anyone please help?:frowning: