Try clearing the forms cache and running Help | Detect and Repair.
<john1@mindspring.com> wrote in message news:73aa9da5-029e-479e-8039-ca23da0f19a0@p73g2000hsd.googlegroups.com...
> I'm working on Outlook 2003 SP3.
>
> I have a custom form (based on Contact) that I have modified and
> published many times before. When I attempt to publish it now, I get
> a message "Unable to successfully publish the form due to a MAPI
> error. The object could not be found." I get this same message when
> I attempt to publish any form including one based on IPM.Contact or a
> Task. I don't have any problem using any form, including custom
> forms, but can't publish.
>
> I installed a .pst file back-up from a week ago (prior to the last
> time I successfully published) and got the same message.
>
> Another curious thing: when I choose File:New:Choose Form... there are
> no form types listed under the Standard Forms Library.
>
> Any thoughts?
>
> Thanks in advance,
>
> John