Brian Tillman wrote:

It may be a while before I can address this. I'm going out of town
for a week and won'r have access to OL 2007. However, if I were you,
I'd just delete the IMAP accounts, which should remove the PSTs as
well, and add them back in, if you want. If that doesn't help,
report back.

Still waiting for the "report back", so I'll conclude that the suggestion
helped.
--
Brian Tillman