System: HP Windows 7 PC, currently up to date
External Hardware: Xerox Documate 510
Software: Visioneer/Paperport

I have the above scanner connected to my HP. It is set up through Outlook 2007 to automatically generate an e-mail with the scanned document.
When the e-mail is generated, the scanned attachment is there. When "Send" is clicked, the e-mail does nothing. It stays on the screen and does not go anywhere. When I then close the e-mail "red x", I click "No" to save e-mail. When I go to "Outbox" the e-mail is there. I open it, and the "To" line is now blank. I then re-enter the recipient's address and resend the e-mail, and it sends immediately.

Talk about confusing. Anyone else have this issue or a solution. I've reinstalled all programs/drivers except Office itself. That was my next step.

Oh, and regular e-mails without the scanned attachment from the Zerox scanner send without issue.

Thanks to anyone who can assist.