Matthew E. sent me a nice e-mail message to say that he’d been “searching for 2 hours trying to figure out how to turn on the ability to insert a signature in Outlook 2003” and finally found the solution in a comment I’d left on Mike’s site. I’m glad it helped. Hopefully this will make it more findable.
If you’re having trouble inserting signatures, visit Tools, Options, Mail Format tab and un-check
Use Microsoft Office Word 2003 to edit e-mail messages. Now when you’re editing messages, you should have the ability to Insert an Signature easily.
You’ll also find that the editor starts up more quickly. I’ve almost never used Word as my e-mail editor, so I don’t know what features you’ll be missing.