I am running Windows XP Pro 2002 SP2.
Microsoft Office Outlook 2003 (11.6568.6568) SP2
I am an Admin user on my machine only.
I am running an Outlook profile. I have two Outlook profiles on my machine. My corporate exchange profile and a profile for testing with no email capabilities. Testing profile is not an actual user but exists as an outlook profile only (the user is mimic'd, of course, in Sugar).
Have you tried a different computer? VMware is great for testing things like these.