i was reading the mouse trail tutorial and i didnt get why
this._x += (_root[letters[this.id]]._x-this.lastX)/speed
would make the the x of the current letter a bit to the left of the letter before it instead of makeing the x values equal.
I also didnt get while it was nessesary to state a variable inside the movie clip id as L since it refers to the current value of l anyway.
any help?