I apologize if this has already been posted - but I couldn't find anything with search. Expose in Snow Leopard feels to me like it needs a little more polish from Apple. I am encountering three issues: 1. The "Blue Box" bug: If you call Expose (say by pressing F3) and you move your mouse around in the path that one of the windows is following to its Expose destination, you will see a blue box that appears at its destination. This box is used to form the blue border around the hilighted window in Expose. I use a button on my mouse to call Expose so I see this one a lot and it bugs me. You can see a video of this one at: http://www.youtube.com/watch?v=R_vdPhvk2Es A screenshot at: http://www.flickr.com/photos/94277347@N00/3868870163/ 2. Window jitter bug: Occasionally (I've only had this happen twice) a window will get into a weird state where when it returns to its original position from Expose it overshoots its destination and then suddenly jumps back to where it belongs. A video of this one is at: http://www.youtube.com/watch?v=pnemBOZBTZY 3. The animation of windows moving when entering/leaving Expose just feels a lot rougher than it was before. The windows are jumpy as they move around and not smooth like they were in Leopard. I couldn't document this one with a video since the animation always looks jumpy when grabbing video of the screen.