A target camera problem or bug? Not a bug.

A couple days ago, I repaired 3ds max 2011 because still I had the camera problem. The computer I am using right now that is not my original computer. Also my home computer never has this problem, so I had been wondering maybe this problem came from install fail or something. After repaired 3ds max 2011, it works fine. I never get same problem again. If you have the target camera problem, I recommend repair 3ds max.