Submit button not working with Mulberry Email Client

Hi,

I'm using Acrobat 9 Pro and I've created a form with a submit button however it seems to work ok with 'Outlook', but at work we use 'Mulberry'. When I click on the submit button the screen freezes with the egg timer showing.

Would anyone have any ideas on how I can get Mulberry to open a draft window with the PDF as an attachment? Ideally a work around so that the submit button will work with both Mulberry and Outlook.

Thank you for any ideas

SF