Ok I finally got around to setting up my 900X for my new wall mounted formica screen (looks fantastic.) The screen is larger and hence further away so I had to make quite a few adjustments (both physical and electronic.) I never noticed what I would call burn-in before (the projector is used had it about 10 months) but recently since I think my last adjustments I have about a 5% area (aprox 4 inches in height on screen 92" wide)) evenly across the bottom of the picture that is lighter/brighter than the rest of the picture (green tube only.) I'm guessing I adjusted phase or size and the raster area used changed slightly than from what it had always been. If this is the case I guess I need to adjust phase back...and do some other (physical/electronic?) adjustments to crt distance/angle? Any ideas/advice? BTW crt in 16x9 mode this is 1080i input any source and also on internal test patterns. Thanks!

Well if you have a larger screen now the only thign yo ucan do is move the PJ farther back I dotn think there is much your going be able to do now about ware on the tube.

Only thing I can thing yo ucan do is leave the settings where they were and move the projector but thats just going give you a less bright image on the larger screen. I would just run the PJ with the brighter bottom until the new unused raster evens out. It may take a long time but that might be the best bet rather then drive the guns harder.

I dont know.