Hello. I have a MBP 17" 2010 model. These days, I travel often between cities. I wonder if I will damage the hard drive by using the MBP on the bus or in the train or plane. I read that there is a motion sensor for the hard drive but a genius at the Apple Store said that it is not good for the hard drive due to vibrations. (At first he said that it would be ok if I put it on my lap. Then, he changed his advice.) I suppose it may be bad for the laptop if I use it under Windows Vista (did Apple include motion sensor control program in Bootcamp?) or switch on/off the computer when the transportation vibrates a lot. Any thought? Thanks.