The S1 was a well regarded projector when it came out. Acheived nearly the reputation as the InFocus X1.
You could either stick with b/o cloth as it makes a fine screen, or try painting it with Behr Ultra-Premium egshell white, or search the forum for "Misty Evening" as this paint, mixed with an additive that I can't remember right now, works pretty well to enhance contrast.
Or just check out the sticky at the top of the listing of threads for the screen faq. Spend a little while reading that and you'll find some great info.
You could either stick with b/o cloth as it makes a fine screen, or try painting it with Behr Ultra-Premium egshell white, or search the forum for "Misty Evening" as this paint, mixed with an additive that I can't remember right now, works pretty well to enhance contrast.
Or just check out the sticky at the top of the listing of threads for the screen faq. Spend a little while reading that and you'll find some great info.