try using some tracing, ex

code:


hello = "0." + substring(this._droptarget, 4,1); 

trace(hello);

// where this.droptarget is the instance a07 

if (hello == display) {

trace("yes it equals display");

_root.green_box.gotoAndStop(2); //Let's say it do stuff A

} else {

_root.green_box.gotoAndStop(3); //Let's sat it do stuff B

_root.a07.gotoAndStop(3);

trace("oh no, it doesnt equal display");

}


see if it's actually running that or if theres some problem
oh, and use the [/as] [as] tags for code (i put them in wrong order so they dont work