A client of ours decide to move from exchange to pop with a new server.
The problem is that when users start to put in the address for someone
in their domain they just click on the name that comes up in the auto
complete and it doesn't send because it is cached from when they used
exchange.  Is there a way to get rid of this cache without disabling
the "Suggest names while completing To, Cc, and Bcc fields" option.

If you click properties of the address cached from exchange it says
"the name or distribution list has been deleted and is no longer a
valid address book entry".

I have updated their contacts so that it has their co-workers
addresses.  I just an annoyance more than anything.

It's outlook 2003 btw.