Thanks for the help Tod.
I still didn't figure out why there is a Nagios package in the (standard) yum repo's  that doesn't work.
I hope this doesn't scare ppl from using it. Bcaus, it is a nice tool.
 
Thx for the tip David,
but if I remove it trough yum again, I guess, it will erase all of the correct files?
Or am I missing something here?
 
regards,
 
Mike