Hi, i have a macbook pro 13 mid2010. yesterday i upgraded from 250gb 5400rpm to 750gb 5400rpm so that i dont increase battery consumption. since i did not have necessary screwdrivers i had a technician install it. today i am suspecting that my macbook vibrates too much. i have never felt this much vibration before. is it just me or does the stoch hard drive vibrate too? old hdd: toshiba mk2555gsx new hdd: toshiba mk7575gsx (newer model with same vibration values from toshibas website) could the vibration be caused by wrong installation because the techician did not seem to know anything about macs (he claimed he needed to take out the motherboard to reach hdd). to be honest he didnt seem to like me so maybe some loose screws?