vnc server Configuration against REP-3000 Toolkit error in Oracle APPs

Hi There,
    Here are the steps that will clear you how to resolve the REP-3000 Toolkit error in reports.

Step-1: 
        1st Check the display variable set in your enviroment in application user
   
   Example:  Here
      $whoami
       appluser
      $echo $DISPLAY
      testsrv :0.0
     
  Here We observed display value 0.0

   Step-2 :
          Enter into application server as a root user.
         
         #hostname
            testsrv
        Start the vncserver with port 0
        # vncserver :0

    Step-3 
    apply the xclock command and see the clock      
     #xclock
     It should come
     #xhost +
     The above command disable display the clients and the display value can be inherited by all users
    
     # su - appluser
     $xlock
       Clock should come

If it is working fine then your issue must have resolved.

Please give feed back.