user cronjobs are not performed

[Simon Zilliken]

Am Freitag 14 April 2006 16:29 schrieb Thilo Six:
># check scripts in cron.hourly, cron.daily, cron.weekly and cron.monthly
># minute (0-59),
># |  hour (0-23),
># |  |  day of the month (1-31),
># |  |  | month of the year (1-12),
># |  |  | | day of the week (0-6 with 0=Sunday).
># |  |  | | |
># |  |  | | |   user    command
>17 *    * * *   root    run-parts --report /etc/cron.hourly
>
>Does on your system exist the user "nice"?
>
>
>bye Thilo

I don't understand ... I'm talking about a user crontab, so there's no need 
(and no way) to give a user. "nice" is part of the command.

Bye, Simon