FastCGI error

Hi!

I just installed RT3 and now i tried to run it via fastcgi. But I always get
an internal server error 500. Apaches Error_log says:

[Sun Apr 27 13:55:54 2003] [crit] (13)Permission denied: FastCGI: can’t
create server “/opt/rt3/bin/mason_handler.fcgi”: bind

() failed [/usr/local/apache/logs/fastcgi/362fab4db3d651b6d082c0358ebb4d83]

I also read the faq and tried all chowns and chgrps but nothing solved the
problem!

What do I have to do?

Thanks!

Manuel Bernardy