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The trackpad on my MacBook moves on its own and jumps about on the screen. Sometimes I can't move it at all, and most mouse actions has a little delay on it. When I close the lid and re-open it, the trackpad is controllable but only for a few minutes. Does anyone know what could be causing the problem?

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Welcome to Super User! Please make the title summarize the problem you have? "MacBook ,snow leopard,2010" does not explain a lot to people. Thanks! –  Arjan Aug 30 '13 at 8:30

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