Long time listener, first time poster... thanks in advance.

I've been banging my head for a few days now trying to create an 
AdvancedDataGrid item renderer that allows individual cells to scroll in a 
performant manner. Basically if there are more than 10 or so lines of text, 
rather than changing the height of the row, I want to show a scrollbar within 
the cell.

I've tried using TextArea, TextField, Label, TextFlow, Sprite, and a few other 
things.  As soon as I get a lot of renderers on screen, performance goes to 
hell, i.e. 5-10 seconds to render a grid with ~200 cells.

I've posted an example with 5 different item renderer classes here (view source 
enabled):

http://jessewk.users.sonic.net/ScrollingRenderer/ScrollingRenderer.swf

The look I'm trying to achieve is the "Scroller w/ Label" item renderer. If you 
try selecting 'Scroller w/ Label' and 'Single Line Data' you'll see that it 
takes several seconds to display.

Of note, performance seems to be about 2x better on Mac OS vs. Windows. To 
really feel the pain, try a Windows browser.

In any event, if anybody has ideas how to make a faster item renderer I'd be 
extremely grateful. Also, to be clear, I'm stuck with AdvancedDataGrid.

Thanks,
Jesse 

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