Quote:
Originally Posted by T.G
So long as you can't rub the streak/blotch off with your finger, most likely it's nothing to worry about: sunspots, waterstains, rub marks. If you can, it could be mold.
But could you please post a photo? It would help alot.
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Let's try this:
It actually shows up better than I thought it would. Thanks everyone for the help!