anything about them. I switched classrooms this year. My new whiteboard is quite peculiar - it gets messy easily and when I erase it there are large stains(?)/blotches(?)/ smudges left behind. This didn't happen on my old one. It looks like perhaps somebody used some cleaner or solvent on it that wasn't supposed to be used (I'm guessing here). Has anybody seen this before? If so, is there a way to "restore" a whiteboard. I realize this is a rather mundane question but it's irritating to me and makes my classroom appear messy. Thanks for any help on this. BTW, I try to teach with my mobile pad, powerpoint, etc. but sometimes the whiteboard is necessary.