As several others have mentioned, don't use any kind of polish or cleaner on the 496 screen ... get a high quality eyeglasses cloth for coated lenses or a lens cleaning cloth from a camera store, these work great and don't degrade the surface. If you've scratched the 496 screen bad enough where it really bothers you, there's several vendors on eBay that sell stick-on screen covers in both glossy and anti-reflective finishes ... they work well to cover up the scratches and restore clarity to the screen, just don't ever try to pull it back off (don't ask me why I know this!), once its on, it stays on.