I know this is a first post but please help anyways, I need this projector to be working by Monday the 2nd. I just got this projector second hand, it is a Proxima Desktop Projector 5900, I am assuming it is a CRT and this is the right place, feel free to move if its not. All of the colors are working RGB. Except perfectly in the middle their is a circle where blue does not project, all around the circle it is fine, but anything in that circle will be missing blue. I am not sure what this is whether it is a mirror out of alignment, something on the lense, I don't know, but with the blue working on the outside it dosen't seem to be broken, just out of configuration. Thanks in advance for your help.