I have been browsing the AVSForum and some people on there have used blackout cloth (the stuff for curtains) for their screens. Has anyone on here used it and had good results? On the other forum lots of people are saying that it needs painting in order to get good results, but without a paint sprayer I can only see myself messing it up. So, would blackout material work well enough on its own? I am going to be using a Sanyo PLV-Z1 btw. Thanks.