Problems with fetchmail

[Mats]

Hello,
I will try to keep this both informative and short. I have installed
mutt and fetchmail under fedora 13. I have also changed from sendmail to
postfix and it works perfect sending mail with mutt. When I use
fetchmail -a to get my mail I can see that it fetch the mails but they
don't show up in mutt. The folder in mutt is set
to /var/spool/mail/"user" but it seems to be empty. I have
no .procmailrc file (not in /etc and not in /home/"user").
My .fetchmailrc looks something like this:
poll my.isp proto POP3
user me_at_isp there with password "secret" is "my_login_name" here
And it's chmod 600 (obviously because it starts as normal).
As I said, I wonder in what folder he puts the mail?

/Mats