Alex, Thanks for the reply. I'm not sure how that is possible. The ComboBox is set: textSelect.percentWidth = 50;
That is in FormItem set: item.percentWidth = 75; Which is in <mx:VBox height="100%" width="100%" verticalAlign="middle"> <mx:Form id="tForm" height="100%" width="100%"/> </mx:VBox> Which is in: <mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="100%" height="100%" creationComplete="init()"> If that was the case, I would expect my other items declared like this to also cause issues. But I get all of the form displayed. As soon as the RPC returns values to the ComboBox, it blows up. Is there logic somewhere in updating the dataProvider of ComboBox that would set the width to NaN? Thanks Dom --- In [email protected], "Alex Harui" <[EMAIL PROTECTED]> wrote: > > Probably means that the CB's width is also NaN and got that way due to > some funky layout logic somewhere. > > >

