To open Scheduled Tasks, click Start, point to Programs, point to Accessories, point to System Tools, and then click Scheduled Tasks.
If you want to configure advanced settings for the task, select the Open advanced properties for this task when I click Finish check box on the final page of the wizard.
Confirm that the system date and time on your computer are accurate, because Scheduled Tasks relies on this information to run scheduled tasks. To verify or change this information, double-click the time indicator on the taskbar.
You must supply the password for the account on which you want the the scehduled task to run. The password cannot be blank
Hope that helps a bit..