Field validation with Tab Key

I am writing an application in which I must validate the data a user enters into a textfield when the user presses the "Tab" key. I have added a KeyListener to the textfield and when this java code is run as an applet the KeyListener catches the Tab key and all works fine. When I run this as an application, the Tab key does not seem to be caught at all by the Key Listener.
Has anybody else had this problem on the IPAQ, if so, do you know a solution.
Any help would be GREATLY appreciated.

I've been having this problem as well. I have created my applet using Visual Cafe 3 (Java 1.1). When I run this in Jeode it work great, Personal java works great, MSVM works great, but when I try to run using Sun Plugin 1.4.2_02 the tab key events are never fired.
Does anybody have a solution for this? Unfortunately, we are stuck developing with an older version of Java because of Visual Cafe.

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