[Dovecot] Slow squirrelmail login/IMAP CPU 80%

[rusecure at rogers.com]

I've been having a problem with Dovecot on Fedora Core 2 with
SquirrelMail on the same system. 

When ever I login through SquirrelMail the imap process consumes around
80% of my CPU and the login takes forever (about 10 minutes). 1 

Once I do manage to login, everything is fine and can even log out and
back in without issue. 

Has anyone encountered this?

Thanks,

Nelson