I've tried sanding, paint thinner and remover, a heat gun and anything else I could think of to remove latex drips and runs from drywall walls. My daughter's room is done this way and now I want to repaint and can't find a way to get the walls smooth short of hanging new drywall. If anyone has a method of getting these drips and runs off, PLEASE tell me. I'm desperate!! I met a lady at the local paint store that has the same delima.