Try a new mail profile.

--�
Milly Staples [MVP - Outlook]

Post all replies to the group to keep the discussion intact. All
unsolicited mail sent to my personal account will be deleted without
reading.

After furious head scratching, Nathan Sokalski asked:

| I have Microsoft Office 2003 installed on my computer, including
| Outlook. Outlook stopped working for some unknown reason one day.
| Whenever I try to open Outlook, I see an error that says:
|
| Cannot start Microsoft Office Outlook. Unable to open the Outlook
| window. The set of folders could not be opened.
|
|
|
| This message shows up before I even try to do anything, so I have no
| idea what set of folders it is referring to. I have tried
| uninstalling and reinstalling Office, but it did not make any
| difference. All the other Office 2003 components (Word, Excel,
| Powerpoint, etc.) work with no problem, so why isn't Outlook working
| correctly, and what can I do to fix it?