Computer Changes and No Email

I use em Client regularly and had to change temporarily change back to my laptop due to my PC is in the rpair shop. What do I need to do to get em client to work on my laptop and show all my email from my PC?

If you are on pop3/smtp all or most of your mail is in the repair shop.

do you use POP3 or IMAP protocol?

George Wilson - I use POP3.

In that case I cannot give you any other advice because DavidC explained it very clearly.