I have a dozen or so users accessing Outlook 2003 on a 2003 Terminal Server. A few times per day I get the following error:
Time: 12:03:35 pm 28-Apr-10 UTC
Source: Microsoft Office 11
Description: Accepted Safe Mode action : Microsoft Office Outlook.
It doesn't happen every single time Outlook is opened - but I've been able to recreate the issue with my test account.