I was experimenting with options for recording games for the Fantasy League, and somehow, I managed to get a game started where all of the players and the baseball we invisible. Now, when a ball was struck, the camera would pan just as it normally would, except that there were no players or balls to track. Occassionally, the camera would pan into the bleachers, and you'd get a "home run".
I've included still photos from the game (the "logos" are from the Freeware screen capture program I use). Very, very odd.
(http://img.photobucket.com/albums/v37/fightonusc/frm00001.bmp)
(http://img.photobucket.com/albums/v37/fightonusc/frm00002.bmp)
This would be much cooler if the ball was visible, you just see pitches appearing out of nowhere.