Silver (or other metallic colored) Reva Owners- Do you have any scuffing problems? I just noticed that my silver revas have a few little "scuffed" areas that look like the metallic has rubbed off - it looks dull in these areas (like the shiny coating has rubbed off) Has anyone else had this problem??? It doesn't look good! What should I do??? Can I color-in this area with something? How do I stop this from happening in the other areas? HELP! TIA!