Flash Profiler says I'm creating a new game instance once per frame... !?

My profiler screen shot:
http://img188.imageshack.us/img188/9711/60192648.jpg

“Hilights” is my game class, which is also my Document Class. Though the “Instances” count never goes above 1, as you can see, the “Cumulative Instances” increases at a rate of one per frame.

In the ADDED_TO_STAGE event, I have a “stop()” line to prevent it from looping. In addition, I’ve put traces in the class Constructor, in the ADDED event, and the ADDED_TO_STAGE event, but none of them are being called repeatedly. The game functions fine, aside from a strange 4kb memory leak that gets GCd after a few megs. I suspect that leak may be tied to this weird “instancing” behaviour.

What could be causing this odd behaviour?