screen layout differs from print layout

["Jonny at Roggenbuck.de" <jonny roggenbuck de>]

Example of my problem: I composed a document with two  images which are 
overlapping (background picture and a picture above). Both are embedded 
objects, both are transparent png.

On screen everything looks fine, but printout shows a white box for the 
image on the top layer. THis normaly indicates that this image had no 
tranparency, hich is not true, because ist´s ok on the screen.

Any idea?

Using win 2000 and dia 0.96.1

--
Jonny Roggenbuck