RE: Error.log message

> I've checked all my PERL scripts for a wrong or missing #!/usr/bin/perl: all
> are OK !

My guess is that you have something like this in your config file

   Control {
     Specials {
        CGI { pl }
     }
   }

for this to work every perl script needs to be executable. That's a bit of 
a nuisance. So it would be better to do something like this instead

   Control {
     External {
       /usr/bin/perl { pl }
     }
   }

HTH
Cheers
Michiel