In my flex application, I have a custom TitleWindow that pops up in modal fashion. When I resize the browser window, I get this warning:

Warning: Filter will not render. The DisplayObject’s filtered dimensions (1286, 107374879) are too large to be drawn.

Clearly, I have nothing set with a height of 107374879.

After that, any time I mouse over anything in the Flash Player (v. 10), the CPU churns at 100%. When I close the TitleWindow, the problem subsides. Sadly, the warning doesn't seem to indicate which DisplayObject object is too large to draw. I've tried attaching explicit height/widths to the TitleWindow and the components within, but still no luck.

[Edit]

The plot thickens: I found that the problem only occures when I set the PopUpManager's createPopUp modal parameter to "true." I don't see the behavior when modal is set to "false." It's failing while applying the graying filter to other components that comes from being modal. Any ideas how I can track down the one object that has not been initialized but is being filter during the modal phase?

Thanks for reading.