[flexcoders] Error #1502 with Tree::mouseOutHandler()

[Oscar_Tseng]

Hi, I'm getting 1520 error very often when mousing in and out of a 
Tree. I'd appreciate your help.

Error: Error #1502: A script has executed for longer than the default 
timeout period of 15 seconds.
        at mx.core::UIComponent/get parent()
        at mx.core::UIComponent/get owner()
        at mx.core::UIComponent/owns()
        at mx.controls.listClasses::ListBase/itemRendererContains()
        at 
mx.controls.listClasses::ListBase/mx.controls.listClasses:ListBase::mou
seOutHandler()
        at mx.controls::Tree/mx.controls:Tree::mouseOutHandler()