I logged a bug recently on this topic.
vote for it
http://bugs.adobe.com/jira/browse/SDK-13005
The workaround is there as well
On 18/10/2007, at 10:15 AM, Richard Rodseth wrote:
I'm following the recipe described here:
http://www.adobe.com/devnet/flex/quickstart/validating_data/
In the last example on the above page (at least in Firefox), the
validation borders don't seem to update correctly. In particular,
when you type the character that makes an e-mail address valid, the
red border does not disappear, but if you cover and uncover the
window, it re-renders correctly.
