Cron and F-prot not working correctly

[Schimcek, Derrick]

I have a FreeBSD 5.0 and a FreeBSD 5.2 box both running recent versions of f-prot antivirus when you run the virus def updater through cron it gets halfway through the scripts and then dies. When you run it from the command line it runs correctly. so I wrote my own script that uses ftp instead of http and it exhibits the same behavior. does anyone know if there is some cron issue I am missing or if cron has a time to let the script run variable. any help will be greatly appreciated.