hi all , I created a GUI application on QT 3.1 on red HAT LINUX. Now i want to run this application automatically just after log in as ROOT. How can i do this . If I want to run my application daily at 4:30 PM then what to do for it. I tried it using cron but could not successful . Any idea will be appriciable. On cron i make a sch.cron file by writing 30 16 * * * /root/scheduler/schedule (my binary file path) and keep this on root directory. Now I load it into the crontab using command crontab sch.cron . If i check the schedule work by crontab -l then it shows # DO NOT EDIT THIS FILE - edit the master and reinstall. # (/tmp/kde-root/kcronWQeztb.tmp installed on Fri Dec 23 19:34:48 2005) # (Cron version -- $Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp $) # (Cron version -- $Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp $) 30 16 * * * /root/scheduler/schedule # This file was written by KCron. Copyright (c) 1999, Gary Meyer # Although KCron supports most crontab formats, use care when editing. # Note: Lines beginning with "#\" indicates a disabled task. BUT it does not work . any other idea to do it so, or where i am doing wrong. regards NAV <a href="http://adworks.rediff.com/cgi-bin/AdWorks/sigclick.cgi/www.rediff.com/signature-home.htm/1507191490@Middle5?PARTNER=3"><IMG SRC="http://adworks.rediff.com/cgi-bin/AdWorks/sigimpress.cgi/www.rediff.com/signature-home.htm/1963059423@Middle5?OAS_query=null&PARTNER=3" BORDER=0 VSPACE=0 HSPACE=0></a>