A few times over the past couple of weeks, including a few minutes ago, the sudden motion sensor on my Mid-2010 MacBook Pro becomes stuck, making the "clicking" noise over and over again. Unlike normal, it doesn't click once, it clicks time after time until I intentionally jolt the computer quickly to make it re-activate then act normally again. Am I the only one with this problem? Perhaps resetting the SMC or PRAM could fix this? Thanks.