SeekBar Handle

I have a seek bar that is controlling a FLV playback component. When the user rolls of the stage, the seek bar, and all the controls alpha to zero. For some reason the scrubber handle does not disapear. I have tried to find documentation on how to access the handle, but the instructions that are given don’t seem to work. The seekBar is on the root level . . . but trying to acess the handle though “handle_mc” does not work. I am working in flash 9 AS3