Hi Milly,

Thanks for the reply. After searching for all instances of *mapi* on
the machine and thinking about how things came to be broken, we decided
to uninstall PGP Desktop. This resulted in an immediate improvement
(i.e. no more restarts trying to open Help -> About..., messages with
attachments, etc.).

Would love to lock down the user, but in this particular situation
company management has decided to use the additional software despite
the potential for conflicts.

Regards,
Ken