there are three windows 7 pro 64 bit machines, all running office 2003, service pack 3. email is pop3. Most of the messages they get are correctly displayed. pretty randomly these three users get an email that is raw html; all the code, etc shows up. each of these users also has a blackberry; their email is forwarded to the blackberries. The email shows up just fine in webmail or if the user forwards it back to their outlook from the blackberry. it happens randomly. it is not even consistent within senders.
the other users, all windows XP, do not have this problem. many emails are copied to multiple users; only the users with win 7 64 bit pro and office 2003 have this problem.