Warning before forced disconnection

This has also been posted in the Windows XP discussion area.

I have enabled the domain group policy in Server 2003 to forcibly disconnect our Windows XP users at a specific time each evening. I was hoping there would be a warning displayed on their PCs 5 or 10 minutes prior to the disconnection, but for some reason there isn’t.

Is there any way to configure the server to display an advance warning?

Any assistance is greatly appreciated.