I followed the instruction to create a bundle and then assign to a device or a user. I make distribution schedule and launch schedule both set at user login. But I tested the pushdown by logging out and logging back in, nothing happens! However, if I went to the devices->select a workstation->then select "launch bundle" from Quick tasks dropdown menu, the pushdown happened immediately.

And also I can manually lauch the pushdown from the workstation's application launcher.

Can someone advise what configuration I missed?

Here is the link I followed to create a test bundle:
Launching application installations through ZENworks 10 Configuration Management Bundles | Novell User Communities

Thanks a bunch!!!