error while loading shared libraries

[Xao]

I seem to be getting the error below since upgrading from 4.5.10 to 5.0. Everything is working, but this is coming through in e-mail once every minute.

/opt/zimbra/java/bin/java: error while loading shared libraries: libjli.so: cannot open shared object file: No such file or directory
Unable to determine enabled services from ldap.
Enabled services read from cache. Service list may be inaccurate.

Any ideas?

[Xao]

Additional info:

[root@webmail conf]# /bin/su - zimbra
[zimbra@webmail ~]$ env|grep -i java
JAVA_JVM_VERSION=1.5
PATH=/opt/zimbra/bin:/opt/zimbra/zimbramon:/opt/zimbra/postfix-2.4.3.3z/sbin:/opt/zimbra/openldap/bin:/opt/zimbra/java/bin:/opt/zimbra/snmp/bin:/opt/zimbra/sleepycat/bin:/opt/zimbra/openssl/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin
JAVA_HOME=/opt/zimbra/java
[zimbra@webmail ~]$ ls /opt/zimbra/java
COPYRIGHT  LICENSE  README.html  README_ja.html  README_zh_CN.html  THIRDPARTYLICENSEREADME.txt  bin  include  jre  lib  man  src.zip
[zimbra@webmail ~]$