Preview Won't Print

I have a simple 1 page report that contains a title band and a detail band
with 1 QRLabel whose caption is filled using the OnNeedData event. I create
the report using the Preview method. When I attempt to print from the
preview, there is a flash of a dialog box on the screen but nothing gets
sent to the printer. The printer setting for QuickRep1 are:

Copies = 1;
Duplex= false;

The printer setup dialog looks normal and recognizes the default printer.
What's happening to the printout?