Hvis du har opdateret IE til version 11 kan det være den der driller!
We had a similar issue started on the 13/11/13 after updating to IE11. Uninstalled IE11 and issue was gone.
We use HTML and no stationary
Windows 7 with OL2003 SP3
Issue is random and does not happen with all the emails.
We found no way to retrieve the missing content of the email. Tried saving an email with the issue as plain text and html, inspected the content and the content is still missing.
Signature is retained and part of the body of the message goes missing.
http://community.spiceworks.com/topic/412863-outlook-2003-losing-text-on-se?page=1#entry-2763787