Not receiving Outlook after disk clone

I cloned my hard disk with Caspar XP. When I attempt to use Outlook 2003 on the cloned disk, Outlook can send by not receive email. If I revert to my original disk, Outlook receives mail. I have not made an settings changes to the cloned disk.

If I send a message to myself on the cloned disk, I can receive them with Outlook Express on the cloned disk and with a web mail service.

Outlooks email test function indicates successful send and receive.

I also would like to know where any messages I may have received today have vansihed to and if it is possible to retreive them.

I’m baffled and many thanks to anyone that can crack this one.