Hi there - I've got a Dell Inspiron for one of our office laptops and the motherboard went bad. Dell is telling me it has liquid damage but I am pretty sure no one has ever spilled anything on it. The laptop worked on Saturday and was not touched until Monday morning. It was powered down and then on Monday morning, it would not turn on. It's under warranty from Dell and was sent in. I have researched rust from leaky capacitors but Dell told me this is probably not the case. Also, have considered humidity as the culprit. There are really only a couple of round spots from the photod they sent and then one area that has a patch of small rusty dots. Anyone have any experience with this?