cron script won't run

[Matthew Metzger <news@thinkdeeper.com>]

Hello,

I have a script that works great when I run it from the command line, 
but doesn't work at all when added to crontab. The strange part is that 
/var/log/cron shows the job running:

Sep 26 03:39:01 cono crond[25241]: (root) CMD 
(/etc/cron.3min/mail-restart.sh)


However, the log shows some other errors that may have something to do 
with it.

PAM adding faulty module: /lib/security/pam_krb5.so
(root) CMD (/etc/cron.3min/mail-restart.sh)
PAM unable to dlopen(/lib/security/pam_krb5.so)
PAM [dlerror: /lib/security/pam_krb5.so: cannot open shared object file: 
No such file or directory]

However, other cron jobs run just fine. So I'm not sure what is the 
problem. Any help in figuring this out would be greatly appreciated.

Thanks.

-Matthew