Problem Removing FocusManager from Memory

Question

Ok, so I have a class that I use as a menu for my program. It has some Flash components and an instance of FocusManager in it. My base class instantiates this class collects the data from the user via the components and then removes the class and continues on with the program. The problem is that after I remove it and move on it is still being held in memory. The file I am using now was created in Flash CS4 and I then I run the profiler on it in Flash Builder 4. After I take the two snap shots and look at the loitering objects I can see that the FocusManager is still there and it is keeping my class there. Here is what the class looks like (I made it simple test one that does what the class from my application is doing):
package
import fl.managers.FocusManager;
import flash.display.Sprite;
public class TestMenu extends Sprite
  private var fm:FocusManager;
  public function TestMenu()
   init();
  private function init():void
   //Add code
  public function activateFM():void
   fm = new FocusManager(this);
  public function clearFocus():void
   fm.deactivate();
   fm = null;
Is there something else that I am not doing? If anyone has some insight into this I would greatly appreciate it.

Answer 1

What I meant is that instead of using whatever erase functionality (I wouldn't know one), the code inside the function modules of FG1 should clear all global data with CLEAR and REFRESH statements before returning to the calling program. Even better would be to not use any global data in FG1 in the first place, if possible, rather work with local data declarations only inside the function modules.
Thomas