I'm not happy with my latest Zimbra installation. It's a 64-bit setup running on CentOS. (Release 6.0.9_GA_2686.RHEL5_64_20101115233514 CentOS5_64 FOSS edition)

Daily I receive a lot of errors that I don't receive from other Zimbra servers:
/opt/zimbra/libexec/zmstatuslog already running with pid xxxxxx

How can I fix this?