Because when it appears, the email that I sent immediately prior does not get to the recipient.
This message is used to carry data between the BlackBerry handheld and an associated server. Please do not delete, move or respond to this message - it will be processed by the server.
Not sure, but if that is the issue, I think the only way to fix it might be to uninstall Desktop Manager and reinstall making sure to check the proper (non-enterprise) setup box.