HP Compaq Presario,Presario 1700 Supplementary Manual page 67

You already know how to
play DVDs and video CDs.
This section shows you
how to adjust the display
options while watching
videos on your Notebook.
To hide the DVD Player panel, click anywhere outside the DVD
control panel.
To view the DVD Player control panel when the DVD Content
Picture window is set to full-size, move the cursor to the edge of
the screen.
To enlarge the DVD Player picture window to full-window
size, double-click anywhere on the picture.
To return to a smaller window, double-click anywhere on
the picture.