Having problems with status.cgi

Hello
I declared a set of monitors to a switch (for testing purposes about 20 of them) but very often when I call …cgi-bin/status.cgi?hostgroup=all&style=grid
I receive an incomplete web page with some of the monitors for the switch and the page is truncated, where are not visible the rest of hosts of my topology.

I have to click several times on the link to finally obtain the complete page.

Thanks in advance for any help
Regards
Enediel

/etc/rc.d/init.d/nagios stop
then
ps -ef|grep nagios
if all nagios is killed, then start it up again. If not, kill the remaining nagios procs. I suspect you have more than one alive.