Hello. Iím hoping someone out there can help. We have a teacher PC connected to a IWB and projector. When a restricted user (teacher) tries to display a moving image or PowerPoint slideshow on the IWB, it appears normal on the PC but as a black box on the IWB. If a local administrator logs in, the moving image/film and PPT slideshow displays fine. Giving the teacher local admin rights does not fix the problem. Any ideas?

Thank you!!