Ok, I have recently purchased the Acer PD116P business projector for home use. So far, it's much better than I expected when I project it onto the wall. However, the contrast level is not that great even with the component cables. So I plan on having a large piece of fabric hanging on the wall as my 'screen': 1) What kind of fabric is best for this situation? (Cheap is good) 2) Where can I locate fabric like these in Vancouver, Canada, or any city for that matter? Thank you so much !