Awhile back I deleted the auto-replace entry in Outlook/Office 2007 for the smiley face emoticon. Now I would like to add it back. I have tried to add a new entry with the smiley face by copying it from others' e-mails, but it gets translated into an unknown character (see screenshot). If I try to use the auto-replace in an e-mail, the unknown character block shows up instead.
How can I restore this auto-replace entry to get the smily faces back? :)