Ok, I have several questions and plan to order everything I need as room will be done by monday and ready for paint, etc. First, room is 16' x 16'. I have wired for inwall speakers and will be mounting projector on the ceiling and will have about a 10' - 10'5" throw distance to work with. I have vaulted ceilings however, that slant downward after about 4 feet in the middle /```\ like that. It angles down to about 4 and a half foot knee walls, then they are down. I plan on using a panasonic ae4000u projector with a 7.1 or 7.2 in wall speaker system driven by an onkyo rc-160 receiver. Room has no windows and is completely dark (Upstairs over garage addition). So, can I get a 100" - 106" projection image on that throw distance? With a ceiling mount, I can not get the projector down to the level needed for where the top of the screen is, so can i tilt the projector down? or is there enough vertical shift to allow me to do this? I need to mount projector about 14" - 18" off ceiling, but in order to get the screen sizes mentioned above, I need the top of the screen to start at about 23 or 24" off ceiling, I would prefer to mount as high as possible, anyone know what i can do here? I have heard something about a keystone adjustment, but have no idea what that means. What screen should I use as a fixed screen??? I want 16:9 as I don't want the long skinny image of a 2.4:1, but it seems all blue rays are in that format as far as films go, so should I suck it up and get a 2.4:1 screen or what will this look like on a 16:9 screen if format on disc is 2.4:1? I was looking at white tribal screen. Finally, what color should I paint the walls? I am thinking a flat black for the slanted part of ceiling and top, and a crimson red or dark red on the walls where screen will be and knee walls. And what color carpet would be best in that situation? Thanks for the help in advance! I attached a poorly drawn picture to give you a visual idea of the set up and the room its in.

I did receive the new panasonic pt-ae4000u on Wednesday and I did finish to install it in my home theatre yesterday night. I must say that I am EXTREMELY disapointed with the projector. When playing video games of cartoon everything is perfect but the problem is when playing movies with dark scenes. We barely see the details in the dark zone of the picture. I tryed all mode ( cinema1. dynamic, color 1, etc...) and no one is good... Also the color are always a bit greyish... I did read the manual and there nothing I found that could help... This projector has very good rating on the maket... May something be wrong with the machine? I have a 105`` grandview screen and the projecotr is places at 16feetdistance on a ceiling mount. Please someone help try to improve the image!

How does a projector "know" which way is up? Meaning, if the projector is shelf mounted and is projecting an image on a screen the image is displayed correctly-upside right. Question is...how does the projector display the image correctly when a person chooses to mount the projector from the ceiling which puts the projector upside down?