I am trying to configure a user friendly error page to replace the 501 Method Not Implemented Page as suggested by the modsecurity_crs_10_config.conf file.  I cannot for the life of me determine where this is located at.  I am looking at my apache conf file for the correct path to the 501 error page, I modify the page, stop and restart Apache.  Clear my cache and run the test and I still get the default Method Not Implemented Page instead of my custom page.  I even went as far as deleting all the error pages from the machine, stop/start Apache, clear cache and I still received the error page.    Is this something inside of ModSecurity itself I'm missing?  I looked at the Reference Manual but nothing stood out as to what to do and where to go.

If you could point me in the right direction, that would be super.