a proper screen will give a far better picture than using a wall to shine the image on to.. the colour of the wall is one problem to start with as well as other factors.
just a small suggestion, but maybe you should have told your friend that you are not the person to help him with this job...(no rudeness intended)
just a thought...
just a small suggestion, but maybe you should have told your friend that you are not the person to help him with this job...(no rudeness intended)
just a thought...