>How do you do it?

I didn't do it. Honest!

Just kidding.

Create a blank form (this can be done programattically in the same code that shows the preview, but I use it so much I have it predefined to save time.) Make the form a child of the top-level form. When you preview the report, preview it into the form, like this....

*   Method PrintReport()
LPARAMETER llPrint

IF llPrint  && Send report to printer
    REPORT FORM myReport TO PRINT PROMPT NOCONSOLE
ELSE  && preview the report

    *-- Instantiate the report screen
    DO FORM myPreview NAME oPreview LINKED

    IF TYPE("oPreview") = "O" .AND. !ISNULL(oPreview)
	WITH oPreview
            .showwindow = 1 && in top level form
	    .caption = "My Caption"
            .windowstate = 2 && maximized
	    .visible = .T.
	    REPORT FORM myReport PREVIEW WINDOW "myPreview"
	    .release()
	ENDWITH
    ELSE
	REPORT FORM myReport PREVIEW
    ENDIF
ENDIF

RETURN

That's all there is to it.

In your situation, where you have a tiny top-level form. You will probably have to add code to maximize the TLForm before displaying myPreview, then return the TLForm to its normal state when the preview closes.

Hope this helps, let me know how you make out.

regards,