clipart won't show up on slides

[Marta]

when I insert clipart it is there but then after a few seconds it disapears
only showing a white box, when I print the slide the clipart will print

 

[Echo S]

when I insert clipart it is there but then after a few seconds it disapears
only showing a white box, when I print the slide the clipart will print

Try changing hardware acceleration.

How to set graphics hardware acceleration back
http://www.rdpslides.com/pptfaq/FAQ00129.htm