[edited from support email]
When I run an experiment containing a slide show on one of them, during the slide show, if a participant rolls the scroll key on the mouse, the slide show skips through quickly. On the other computer, during the same slide show, which is run from the network server (so in theory there it is the exact same experiment), in the bottom left hand corner, arrows show up that you can click on to skip through the slide show. Also, right click is enabled so the participant can just right click and select to end the slide show. The keyboard and mouse settings are identical on both computers and hot keys have been disabled. Please let me know if you have any ideas.