My projector is too dim (orange promethean projector). I have tried everything with cleaning filters, blacking out windows, etc. It is still nearly impossible to see the image. It is so faint and dim. The IT guy said he tried to replace bulb before, but it didnt help much. The last teacher just gave up on using it. However, I need to use it for math and science. If I have a different projector, can I use that with the promethean board and still use writing features?