cgi wrapper problem

First, suexec is not enabled... second, scgi-bin works...

the script that is experiencing this problem serves many functions and does work for 99% of them.. it's just during one process this script does that it dies with a 500 error. In the error log is this:

Premature end of script headers: /usr/local/cpanel/cgi-sys/scgiwrap

anyone know what might be causing this to happen and a fix hopefully? Thanks