Hi there, I was out one night and I left my macbook below a window during a rainstorm. When i came back the screen had a strange "stain" like spot on the right down corner of the screen. It brightens up the screen but doesn't affect the system. Can anyone tell me what this is or what to do? Thanks! UPDATE 15-10: Just want to say that the spot has almost disappeared, it has taken a few days. I haven't done anything special, just kept using it and left it open as much as possible. UPDATE JAN 2010: The spot hasn't disappeared completely, but it's so small it's hardly noticeable.