After qmail install mail is broken

[Stephen Lavelle]

Having recently installed qmail (and uninstalled sendmail) on a RH 2.0.36
box. The following happens;
Fetchmail appears to fetch from my isp ok
when I open pine to read mail I get the message:
'can't open mailbox; /home/stephen/Folder
where are my messages?
Can anyone help?
Regards,
Stephen