Microsoft Outlook 2003 Service Pack 1 improves  4Team stability.

Aug 17, 2004

New Microsoft Office 2003 (Outlook) Service Pack 1 (SP-1) has solved the problem of crashing custom and 4Team Forms that caused malfunction of 4Team.
If you are not going to update your Office you can still repair this problem using the "Clear Cache" Outlook Options. (Tools->Options->Advanced Options->custom Forms->Manage Forms->Clear Cache).  It is our recommendation that you update your Outlook 2003.
You can download the whole Office 2003 Service Pack 1 here, in order to deploy it  in your organization. Or use Office Update.