I have a client with an Outlook problem. She's using Outlook 2003SP3 with
current patches. When she tries to send a new message to a group of contacts,
not all of the contacts appear in the To: field. Sometimes a few are there,
sometimes none. There are only about a dozen contacts in these groups so it's
not that she's trying to send to too many contacts at once. We have tried
running Scanpst on her Outlook.pst file (which is under 1GB in size) but it
did not fix the problem.

Ideas?