Sanyo PLC XF45 Multimedia Projector "mr church" Questions

i just replaced all 8 bulbs in my projectors. we are a large church and they are used quite a bit each week. when i tested them yesterday, one of my projectors had a yellow dull spot in the center of ...

...church projector and we too had just changed the lamp. I read somewhere while searching for an answer that if the cable input is loose it will cause double vision of the text. Sure enough, the cable ...