Zionworx

Greetings one and all. a question that really doesn't have anything per say to do with Zionworx, but rather the projector. A Nec LT 220, At this weeks bible study as I went to turn on the projector, the only thing that appeared on the screen were striped straight-across lines. It looked rather like a head lamp from a car. I am mystified and can find nothing in the manuel or on the web. Does anyone have any ideas? We may be able to borrow a projector from a Mission base for our service tomorrow, otherwise we're back to paper and ink. Thanks Ullie