Thanks for all the responses! I took the advice and switched to using 
ArrayCollection and all is working fine now (without hammers :-)) 

Thanks again!

--- In flexcoders@yahoogroups.com, "Tracy Spratt" <[EMAIL PROTECTED]> wrote:
>
> I think Alex called "invalidateDisplayList" a "big hammer".
> 
>  
> 
> The best solution to this is to never use Array, or XMLList for 
dynamic
> dataProviders, since their methods do not dispatch the necessary 
events
> to update the UI.  Instead, wrap Array in ArrayCollection, and 
CMLList
> in XMLListCollection, or use XML directly.
> 
>  
> 
> Tracy
> 
>  

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