Help with Kmail please

[kevin.kempter at dataintellect.com]

I need to access a new IMAP account.

I tried to set it up in kmail with the following settings:

port 993
Encryption: use SSL
Authentication: Clear text

However Kmail won't pull the mail. I set the account up in thunderbird with 
the following settings and it works fine:

IMAP server
port 993
use SSL is checked


How can I get Kmail to pull this IMAP account's mail?