logchek failing[Failed to get lockfile: /var/lock/logcheck.lock]

[Prashant kumar <prashkr@cse.iitk.ac.in>]

Hi all
Following is the message I get from logcheck whenever it runs , I tried  
google but could not find much useful.
Any help will be highly appreciated.
TIA
Prashant
Messaghe from logcheck :


Subject: Logcheck: kiwi 2004-10-24 22:02 exiting due to errors

Warning: If you are seeing this message, your log files may not have been
checked!

Details:
Failed to get lockfile: /var/lock/logcheck.lock

Check temporary directory:

declare -x HOME="/var/lib/logcheck"
declare -x LANG="en_US"
declare -x LOGNAME="logcheck"
declare -x MAILTO="root"
declare -x OLDPWD
declare -x 
PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin"
declare -x PWD="/var/lib/logcheck"
declare -x SHELL="/bin/sh"