1024x768 800x600      1024x768 800x600        1024x768 800x600
640x480                       640x480                         640x480
     
1024x768 800x600      1024x768 800x600         1024x768 800x600 
640x480                       640x480                           640x480
     
1024x768 800x600      1024x768 800x600         1024x768 800x600 
640x480                       640x480                           640x480
  
1024x768 800x600      1024x768 800x600
640x480                       640x480