I have my main display (1680x1050) on the left and my secondary (1280x1024) on the right. I want to set hot corners for Expose to show the desktop when I hit the top right corner of the main display, and to show all windows when I hit the bottom right corner. The bottom right corner works because the main display extends down farther than the secondary (there are 26 more pixels down there, and thus a corner), but the top right corner doesn't work - I have to go all the way to the top right corner of the secondary display. Is there any way to change this behavior?