please help -- debian crontab and at problem

[Wei Hu <feelingwei@gmail.com>]

Hi, sorry for this simple question.

I am setting up cron jobs in Debian box, the wget program can start
successfully, but the bittorrent client azureus can not start. Can
anyone please tell me what the problem is?

$: crontab -l
10 2 * * * wget www.debian.com
10 2 * * * /home/user/Desktop/azureus/azureus

By the way, if I use $: /home/user/Desktop/azureus/azureus at command
line, the azureus works well.

Using at command:
         $: echo "/home/user/Desktop/azureus/azures" | at 2:10
also failed.

However, if I use the following command:
         $: echo "wget www.debian.com" | at 2:10
Working well.

azureus is a java Bittorrent client, is there some crontab restrictions?

Thanks
Wei