Asteroids game ... occasional hit undetected

Hey guys,

I’ve constructed a “primitive” asteroids game based upon a tutorial provided at Flash Kit. All is working well except … an occasional hit goes undetected when either the laser or spaceship makes contact with an asteroid.

Is this a depth issue? Please advise. I’d attach the source file, but can’t figure out how. eeee (Flash MX)

All help sincerely appreciated!

j