-ERR Maildir: No such file or directory

First of all,
I did used the search before writing this post.
The things others came up with just wont fix it.

Im trying to setup an mailserver on my internet server.
This server is running an sparc64 based Ubuntu 6.06LTS Operating System.

For sending and recieving mail im using postfix.

For pop3 mail retreival im (tyring to) using courier-pop

For mail filtering the following service is running : procmail

Sending an mail to someone at my server goes ok,
The mail comes in the right directory.

($HOME/Maildir/) aka /var/mail/username


Now the weird problem,
courier cant find the mailboxes.

This is what my webmail client gives me after trying to log in ;


-ERR Maildir: No such file or directory


This is when loggin in with any acccount, exept root,
But the root account doenst have the good mailbox either,
But it opens it. So i dont know what maildir courier is using,

And where i can edit it.

I tried editting pop3d and restarting courier,
But no diffrence was made....

I also cant find the logs,

So the only question is, where can i configure the maildir for courier ?

Edit : Im Not Using ISPconfig

 

Please run this

Code:

authtest username 

It will tell you where courier is searching for the maildir.