After applying a custom style to a TabNavigator, the label on the tab gets cut off after the first few characters until the mouse moves over the tab. From that point on the tab displays correctly.

For example, "Inventory" would read "Inv..." until the mouse is waved over the tab, at which point it switches back to "Inventory".

I'm guessing Flex is getting confused about the width of the tab label-- there's room for the full label, but Flex doesn't realize this until a mouseover. How do I tell Flex to display the full label?