I have had my Mitsubishi 3000 projector for a couple of years, and just replaced the bulb, Now I get a clear line only about an inch thick come across the screen about every 15mins or so. It will start at the top and go to the bottom.It does it while watching DVDs and on my xbox360. Has anyone had this happen to them? Thanks

Anytime I get a line with a PJ as you describe it goes from bottom to top. It usually only does it over one type of port/connection. Lets say it does it when connected to PJ by VGA. Try a different port/connection. Problem still persist?

It looks like it only happens when I use the HDMI port. I have tried two different hdmi cables to eliminate a cable problem.