Well this is my first post on this site. I just got a projector and am projecting the image onto my white somewhat textured wall. What advantages will putting a screen up give me? Will the picture be brighter and more defined? The disadvantages I have already figuered would be I cant have a custom size say 103" or larger. Seems most people prefer the 100" ones. Also the cost of the screen and it being on the wall. Well any help is appreciated. Thanks.