Vista - Emails showing same/duplicate content as other emails

Hello,

I am having a strange problem. I imported my mailboxes from XP when I
installed Vista a while back. I don't know if it has anything to do with the
problem, but figured I would mention it. It seems to only happen when I put
an email into a folder for organization (work stuff, personal, etc), but not
in the mail inbox folder.

Just about all emails in that folder show the same content as one seemingly
random email in there as well. On the main list where it shows the sender and
subject file, everything is fine. But when I click on one of them, they all
show the exact same content in the preview pane and if I double click it to
open it. The same sender, subject and body. It even duplicates attachments.

Its frustrating as I need to see some of these emails again. I am guessing
the data is corrupted somehow, but is there any way of recovering this info?
It isn't doing it for all folders but only a select few.

Any ideas? Thanks a lot.

Brendan