After reading about how wonderful the digital viewer was, I was so excited when I received mine. I had an upcoming training so I studied it to learn where everything was located so I would be comfortable sharing it with my participants. I go to the computer lab an hour earlier to set up only to learn that because of the computer settings, teachers could not load the viewer. I was so happy that I had planned the training using the powerpoints also. Is there any other trainers that are unable to use the viewer because of restrictions on loading software on school computers?