Hello All, I have installed Nagios on solaris10. But I have a problem in accessing graphs.When I try to access the graphs I am facing the below error. <h1>Internal Server Error</h1> The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, <a href="mailto:webmaster@name.mydomain.com">webmaster@name.mydomain.com</a> and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. <hr> <address>Apache/2.0.58 (Unix) DAV/2 Server at nagiosserver Port 80</address> And below are the errors from apache log. [Tue Jun 02 16:44:45 2009] [error] [client 10.187.152.223] Premature end of script headers: graphs.cgi, referer: <a href="http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid">http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid</a> [Tue Jun 02 16:44:46 2009] [error] [client 10.187.152.223] (2)No such file or directory: exec of '/opt/nagios/sbin/graphs.cgi' failed, referer: http:///nagiosserver/cgi-bin/status.cgi?hostgroup=all&style=grid [Tue Jun 02 16:44:46 2009] [error] [client 10.187.152.223] Premature end of script headers: graphs.cgi, referer: <a href="http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid">http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid</a> [Tue Jun 02 16:44:48 2009] [error] [client 10.187.152.223] (2)No such file or directory: exec of '/opt/nagios/sbin/graphs.cgi' failed, referer: <a href="http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid">http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid</a> [Tue Jun 02 16:44:48 2009] [error] [client 10.187.152.223] Premature end of script headers: graphs.cgi, referer: <a href="http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid">http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid</a> [Tue Jun 02 16:44:50 2009] [error] [client 10.187.152.223] (2)No such file or directory: exec of '/opt/nagios/sbin/graphs.cgi' failed, referer: <a href="http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid">http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid</a> [Tue Jun 02 16:44:50 2009] [error] [client 10.187.152.223] Premature end of script headers: graphs.cgi, referer: <a href="http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid">http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid</a> [Tue Jun 02 16:44:53 2009] [error] [client 10.187.152.223] (2)No such file or directory: exec of '/opt/nagios/sbin/graphs.cgi' failed, referer: <a href="http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid">http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid</a> [Tue Jun 02 16:44:53 2009] [error] [client 10.187.152.223] Premature end of script headers: graphs.cgi, referer: <a href="http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid">http://nagiosserver/nagios/cgi-bin/status.cgi?hostgroup=all&style=grid</a> Any ideas to solve this problem Thanks In Advance. Jai Ram.