[Lynne]

I don't know. I would try disabling the plugins, as I suggested, and see if the problem goes away. I'd also see if I could change it via the admin panel and then see if it works. You might also try reuploading the php page he is using to see if there is an error in the page causing the problem. Another thing to try is to create a new style with no parent - Styles & Templates > Style Manager > Add New Style > no parent - then have the user use that style and try to change his birthday. See if it works with that style.