RePaint() bug or doing something wrong?

Question

Im writing an application which consist of a JFrame and two JPanels.
They are laid out with a BoxLayout.
The upper JPanel basiclly draws an image out.
The lower JPanel is listening for mousemotionevents from the upper JPanel. Whenever a mousemotion events occur I write the x,y - coords of the mouse out in the lower JPanel.
The lower JPanel's code look somthing like this:
public class LowerPanel extends JPanel implements MouseMotionListener{
UpperPanel.addMouseMotionListener(this);
public void mouseMoved(MouseEvent e){
updating x,y coords..
repaint();
public void paint(Graphics e){
     e.clearRect(10,10,100,50);
     e.drawString("Coordinates of mouse.... x,y=...");
Now to the problem.. when the program starts everything looks ok with two panels, the upper panel showing the image and the lower panel drawing the "default" coords of 0,0. As soon as I start moving the mouse inside the upper panel the image of the upper panel is drawn inside the lower Panel as well?! Except from that everything works as it should. The coords are updating when I move the mouse but.. with the upper panels image as background to it heh.. does anyone know what is causing this and how to fix it? Please :]

Answer 1

to make the problem more clear:
It seems like the lower Panel captures the upper Panel's output somehow and draws it out before drawing it's own content. (?!)
I really need help with this one.. no idea what im doing wrong. :[