Recently DesktopCentral has started showing an alert of "Mail Server is not properly configured".

This is because the Test e-mail address seems to have now been made a mandatory field and is blank.

I keep entering an email address and press SAVE and it sends me an email.  However next time I start DC the alert message is there again and the Test email box is blank again.  I have just upgraded to 10.0.682 and it has made no difference

How do I get the mail configuration to actually save the setting I am inputting, or is this a bug ?