Office 2003 Update disabled my Office XP Professional (2002)

[evrgrn714]

I downloaded Office 2003 from MS.com in hopes of updating my Outlook files
because my calendar would no longer add any future holidays. I know now it
was a wrong move, but worse, I now I have to find the original disk to make
Office XP Pro work again. Aside from removing Office 2003 and inserting My
Office XP cd, Is there anything else I can do?

 

[garfield-n-odie [MVP]]

Outlook 2003 uses a different .pst file format than earlier
Outlook versions. It's likely that your .pst file(s) were
converted to the new format when you installed Outlook 2003.
Before you uninstall Outlook 2003, see:

http://support.microsoft.com/?kbid=839109
You receive a '.pst is not compatible' error message when you
open an Outlook 2003 .pst file in Outlook 2002, in Outlook 2000,
or in Outlook 98

http://support.microsoft.com/?kbid=830336
The .pst file has a different format and folder size limit in
Outlook 2003