[SOLVED] Cron unresponsive

[calebt3]

I have been beating my head against the keyboard over cron. The daemon is running, so I must have the crontab misconfigured, but I can't figure out how. Here's an entry from my root crontab:

55 23 * * 0-4,6 /usr/bin/shutdown -P +5

Basically, this one is supposed to schedule, at 11:55 every night (except Friday), a shutdown at midnight (the five minutes is so that the system beeps would warn me before shutting down), but it doesn't work. I have an entry with an identical time in my non-root crontab that is supposed to pop up a warning about the imminent shutdown that also fails to run. Any thoughts? Am I supposed to use tabs rather than spaces? What?

[calebt3]

Nevermind, I think I figured it out. I gave an incorrect path for the shutdown program:
/usr/sbin/shutdown

I had a similar typo in my zenity alert cron.