Dragged window display issue when a query is active (4335137)

When executing a query in the Editor, then move another window across in front of the open Editor, images of the dragged window  stay  dragged across Toad.
It is not possible to see Toad and you either have to wait until the query is finished or kill Toad. It doesn't matter if the database is local or  a remote  database on a server.

In order to replicate the problem please follow the steps below:

1. Create the test table:
========================
CREATE TABLE test_drag
(
  ID   NUMBER
)
========================

2. Populate the table with at least 6000 rows:
========================
begin
for i in 1..6000 loop
 insert into test_drag(id) values(i);
end loop;
commit;
end;
========================

3. Go to the SQL Editor
4. In the DBMS Output window, go to DBMS Output and  Turn Output On
5. Run the following program in the SQL Editor:
========================
DECLARE
    CURSOR c_cabs
    IS
          SELECT     id FROM test_drag;
        cabno       VARCHAR2 (30);
BEGIN
    DBMS_OUTPUT.put_line ('START');
    FOR cabs IN c_cabs
    LOOP
          cabno := cabs.id;
        dbms_output.put_line('id = ' || cabno);  
    END LOOP;
    DBMS_OUTPUT.put_line ('END');
END;
========================

While the program is running, drag any window over Toad. You will  see dragged windows across the Editor.
When the code has finished, the dragged windows go and  all returns to normal.

WORKAROUND:
None

STATUS:
Waiting for fix in a future release of Toad For Oracle.