webmail with suse 9.1

I used to use openwebmail before I switched to suse9.1, and I have had no luck getting it installed on suse9.1. Getting Error message: Premature end of script headers: openwebmail.pl So, right now I have squirrelmail, which I am not a fan of. Has anyone had any luck using openwebmail on suse 9.1, or have a different webmail application they are using with good success? Thanks Rob