what are these things? the biggest ones are about 1/8th in but i have alot of them. when i use scotch brite on them they come off kinda powdery and i can also use a razorblade to get them off easily but what should i do to get rid of them? [IMG]http://i465.photobucket.com/albums/rr18/derek29/PICT0006.jpg[/IMG]