Outlook 2000 displays messages in Text only

Odd problem I'm having here:
Set up Outlook 2000 (along with Office 2000) just like I always have. I use an auto-install created by the ORK that has worked probably over a thousand times without a hitch. Using XP Pro.

This time however, Outlook converts every message to plain text. I try sending to this account with rich text, html, etc... and it always recieves in plain text. I've removed (using the eraser2k tool) and reinstalled and still get the same problem.

I know that it is converting and not just misreading the messages because there are no tags that would have accompanied a plain-text reading of HTML code.

Does anybody have any ideas what may be going on here?