I am trying to set up Microsoft Outlook 2003 on a brand new computer that uses Vista for an OS. The program was working fine after I configured my two email addresses for about twenty minutes or so … but then all of a sudden, every time I tried to send any email, I got an error message of: “Microsoft Word 2003 : Unknown Error!”. Once I removed my HTML signature, all was well. Is there any way that I can get around this?