With about a 1000 hours on my X1, the picture was getting dimmer and dimmer and the colors seemed very poor. I figured it was just the bulb getting old and getting dimmer, and I was just trying to throw to big a picture with this little low lumen projector. The picture was getting so bad that I was thinking about upgrading to a new projector. Starting snooping around here and avsforum to see what the latest and greatest is, and I ran across a thread on avsforum about cleaning the color wheel on a DLP projector( specially the X1). I was rather skeptical at first but gave it a shot tonight and it worked wonders! I don't have the link to the thread handy, but the gist of it is that you take Q-tips and water and/or alcohol and swab the color wheel clean. (take the bulb out and it's right there) My color wheel had a "thick" layer of build up on it. The whole procedure took maybe 20 minutes and about 20 Q-tips. Beware that any damage you do will not be covered by warranty! The results were better that I could have expected. Looks exactly like brand new. If you don't mind a little DIY and can handle the risk, I suggest giving it a try.