WebPlus X6: Emails in Form Properties

Hi All

I am using the email generator on the Form Properties. I have tested this on the following Windows platforms;

Windows XP with IE8
Windows Vista with IE7
Windows 7 with IE9

So far I only get an email sent to me via the Contact Form when I use it in IE8. Can Serif (or anyone else) confirm that the email functionality in the Form Properties only works in IE8?

Many thanks