I have a user who is having some HTML email printing issues with Outlook 2003. The only solution we have left is to upgrade him to Outlook 2007. We'd like to go with just Outlook 2007 and keep the rest of Office 2003, but I'm concerned about compatibility.

In the research I've done, I found a few concerns related to proofing when the Word and Outlook versions don't match. Any other known issues?

Thanks,
Adam

EDIT: I found a couple users with outlook 2007 and 2010 and had the same issue. So, I'm not worried about compatibility anymore since upgrading isn't a solution.