diff -Naur freeside-1.5.7.orig/FS/FS/CGI.pm freeside-1.5.7/FS/FS/CGI.pm
--- freeside-1.5.7.orig/FS/FS/CGI.pm	2004-12-10 17:28:25.000000000 -0500
+++ freeside-1.5.7/FS/FS/CGI.pm	2005-07-26 22:41:07.000000000 -0400
@@ -91,7 +91,8 @@
       if ( $header =~ /^Content-Type$/ ) {
         $HTML::Mason::Commands::r->content_type($value);
       } else {
-        $HTML::Mason::Commands::r->header_out( $header => $value );
+	# Modified for mod_perl 1.99+
+        $HTML::Mason::Commands::r->headers_out->{ $header } = $value;
       }
     } else {
       die "http_header called in unknown environment";
@@ -168,8 +169,9 @@
 
 sub eidiot {
   warn "eidiot depriciated";
-  $HTML::Mason::Commands::r->send_http_header
-    if defined $HTML::Mason::Commands::r;
+# Disabled for mod_perl 1.99+, should be an eval{}
+#  $HTML::Mason::Commands::r->send_http_header
+#    if defined $HTML::Mason::Commands::r;
   idiot(@_);
   &myexit();
 }