I have a question for experienced Mac Users. I am a first time Mac User and switched from my PC to Mac. So I experienced some freezes in iphoto and yesterday some while transfering Videos. But all those freezes happend while my external PC Harddisk was plugged in during I transfered files to the Mac. So far when I used my Macbook Pro i7 without the PC Harddisk plugged in I had absolutely no freezes. As I am not going to use my external PC Harddisk anymore after I transfered all files I think my macbook pro should be fine. Or do you think my macbook pro has a problem? Can it happen that you experience freezes with PC stuff? I am not using Bootcamp but maybe once I want to. So could under Windows happen the same thing with the freezes? So should I return my mac or just let it be?