Print Organizer dialog not showing

I was using print organizer this morning. THEN suddenly I could not find the dialog box! I checked the Window drop down list, saw it, picked but no dialog popped up. I tried the keyin, different user, different interface and still got nothing. I went to Utilities>MDL applications>Browse>Bentley.MicroStation.PrintOrganizer.ma then Key-ins. I think microstation "sees" it because when I choose "printorganizer saveas" the "Save Print Set File" dialog box opens, waiting for me to name a pset.  I rebooted the computer and still no dialog box.

Can anybody help me? I am ready to to back to batch plot.

Thanks