It just dies with error:
Thu Aug 23 12:29:04 2012] [error] [client 127.0.0.1] Premature end of 
+script headers: adder.cgi

[download]

Well, there should be something more in the log, either following or preceeding that -- what does the program output when you run it outside of browser ,from bash or other shell?

See CGI Help Guide and Troubleshooting Perl CGI scripts

In reply to Re: FormBuilder fails in "Multi screen mode" by Anonymous Monk
in thread [Resolved]FormBuilder fails in "Multi screen mode" by kazak

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