Hi all, this is my first post. I would like to contribute to the forum in any way I can, and I'm hoping you might have some advice for me. I have an Optoma EP725 that I bought used. It worked fine for a few months, but now when I turn it on it only displays a greyish/black screen. It doesn't even display the Blue Optoma "splash screen" that normally comes on when the projector is warming up. I can see that the bulb seems to be lighting up in there, it's just that nothing but dark gray/black comes up on the screen. Before I blow $300+ on a new bulb only to find out it's something else, I wanted to see if anyone else has encountered a similar problem and what the solution might be. I'm thinking maybe a color wheel problem, but that's just a guess. Any thoughts or shared experience would be greatly appreciated. Thank you so much! Markus(OnTheLevel).