One of my users complained today that emails in his Outlook 2003 were taking time to open up. When i had a look myself, i noticed that only emails with attachments were taking time to open (15-20 seconds). Emails WITHOUT attachments were fine.
I restarted outlook in safe mode, and this seemed to resolve the problem.
I then checked his add-ins and COM add-ins and he didn't have any 3rd party addins installed. Just the same default add-ins that everyone else has. (including Symantec antivirus add in), and he doesn't have any COM add-ins.
But as soon as i run outlook normally again, the problem returns. Running Outlook in safe mode seems to be resolving the issue, but i don't know what exactly it's doing to solve the problem. Is there any way of finding out what exactly is being disabled and turned off? I tried going to Help>About Microsoft Outlook>Disabled Items, but it said that there were no items to display. I even renamed the outcmd.dat file, but that didn't resolve the issue either.