Since I got my macbook pro - latest release i have had to repair the HDD 3 times. I am a new mac user so am unsure if this is common or too often? I never had to do such a thing with any PC so it worried me after a week of use that i was told "repair disk using mac os x cd". can anyone clarify thanks? Also just as a side note my screen flickers occasionally and stays black for a few seconds is this the power invertor in the screen? cheers all