The first thing to do is to check the value of the Message Class property: Does it show your published form's class or IPM.Task?

The next thing to do is to make sure that you increment the version number on the (Properties) page whenever you publish a new version of the form. This is invaluable in troubleshooting, especially when the changes between versions are small.

Here's what I would try with the users who are having problems with the new version: Have them create a new item with the new form. Often, I find that doing that forces the cache to update where just opening an existing item doesn't.

There is also a registry value, ForceFormReload, that you can try. See http://support.microsoft.com/default...b;EN-US;839804

--
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx

"DougMunday" wrote in message ...
We are using Outlook 2003 and Exchange Server 2003. We have created a custom
task form to be used in a public task type folder. When we modify the form
and republish it to the public folder, all users can see the new form when
they create a new task record. However, some users see the new form when
opening existing tasks, while other users see the default Outlook task form
when opening existing tasks. We have tried clearing the Form Cache, but no
affect. What can be preventing the new form from being used by all users for
existing records?

I have seen other articles refer to the book entitled Microsoft Outlook
Programming and the section "To change a default Outlook form". But I don't
understand why we are getting differing behavior between users?

Thanks for any help you can give me.

Doug