The BBC suspended BlackBerry service to more than 300 executives after experiencing a bug found in BlackBerry Enterprise Server v4.02 that caused some users to receive fragments of other peoples email in their own email.
The bug was isolated to version 4.02 and does not exist in version 4.03 or other earlier versions. RIM is aware of a single reported incident of the bug, and responded promptly with a fix.
Research in Motion has developed and tested a service pack that offers a fix for the obscure bug. The service pack can be obtained by contacting Research in Motion and can also be corrected by upgrading to BES v4.03