Projector Lamps

I Have A Dukane Pro Image 8247 Projector... Just Bought It Used, And Now It Has Like A Red Tint At The Upper Right Quarter Of The Screen (projected Image), And To Be Honest The Image Contrast And Brightness Are Not Very Good... So My Question Is: Could That Be Because Of The Lamp? I Mean Is There A Possibility To Work Better If I Change The Lamp?
Lamp Is Expensive So I Won't Buy It If It Won't Solve The Problem.