Thanks Neil51 and Hugues. Actually after a few emails back and forth with Alfred from Shining3D they sent me a new PLE file. That was the problem. Alfred was very responsive, even suggested a video chat if that would not work. But the new PLE file did the trick for me! It also took some fiddling on my part to get the stripes to project on the right screen... The software does not look for a projector or even for an 800x600 display. On my configuration it was looking for the first display on my second video card... The software definitely crashes when the cameras do not see the striped images from the projector...