mc ricky d

Hello, I am new to this site and would like some info/feedback on a problem I encountered with my Panasonic pt-ae8000u.I bought a used projector from ebay the other day and when I received the projector it was in excellent condition just as the seller had listed. However, when I hooked it up to my home theater I notice the image quality is very faded out and the colors doesn't pop.It has 2620 hours on the lamp.I tried all my good showing blu-ray movies and they all show the same way. I went into the menu and adjusted the contrast, sharpness,color etc.But it still looks washed out and not as bright as my other projector. My question is, do you think its time to replace the bulb?Could the bulb be causing the picture quality and colors to look faded out?Also, when I display my home theater pc I notice the the pc down scale the image to 720p from 1080p (my pc is set to 1080p).I went into the settings of my pc and set it to 1080p again and it went back to 720p.I think the projector is causing this.Does anyone know why the projector is doing this and what can be done to solve these problems.Thanks