No fl.* class tool-tips in FB3 b3?

Question

Ever since I upgraded Flex Builder 3 from Beta 2 to Beta 3, I
am not receiving any tool-tips for the fl.transitions.Tween class
or any of the other classes in the fl.* package. This is irritating
because most of them have fairly complex constructor arguments
which are difficult to remember.
The classes are linked to my ActionScript Project via a
source path pointed to the "Classes" directory in the Flash
application directory. This worked well in the past, so I'm not
sure what's different now.

Answer 1

I have myself written a search component as follows ..
private Component searchComponentAt(Container base ,Point p) {
          Component[] children = base.getComponents();
          for(int i=0;i<children.length;i++) {
                if(children.contains(p.x - children[i].getX() ,p.y - children[i].getY())) {
                    if( children[i] instanceof Container ) {
                         Point newPoint = new Point(p.x - children[i].getX() ,p.y - children[i].getY());
                         return searchComponentAt((Container)children[i],newPoint);
                    return children[i];
          return base;
which basically ignores the visibility status of the components. It is working as of now. Not sure whether it will fail for some cases.
Any other suggestions ?
Saba.