Nagios objects.cache file

Another nagios problem:
I have this file:
-rw-r----- 1 nagios nagios 21220 jun 9 17:29 objects.cache

As you can see with rights at 640, nagios cannot read the file for configuration.
I have to manually change the rights to 644 almost everyday. How can i get the rights to stay at 644?

Jason

I found the answer: msec changing everything!