email mailto not working

I use the calendar via "display1.php"  My problem is that when creating an event with an email address - the green link doesn't trigger my email program.

I notice that my browser status info gives page as /luxc/display1.php#
When I open the event and click the link from inside the popup - it works - my browser gives status as: /luxc/index.php#

Is something wrong?
Thanks.