Weird attachment handling issue with mobile devices and Exchange 2003

We are having a weird issue with mobile devices and an Exchange 2003 box.  When you forward an email from mobile device that includes an attachment it sends the forwarded email with its attachment as an attached email instead of inline with the email and the only attachment being hte actually attached document.  This happens with any attachments (ie. pdf, doc, xls, docx.  I have changed in the exchange system manager the internet message format setting to never use exchange rich-text format, as I saw somewhere this may help but it did not.  Attachments are forwarded properly from OWA or outlook correctly it is just with mobile devices that this occurs (older andriod and iphone devices).  Also if you send an email with an attachment it sends it properly, or a reply sent properly it is just forwarded messages that do this with mobile devices.  Does anybody have any ideas on how to fix this weird issue.