Nope made no difference, I disabled it and quicktime still freezes for 30 seconds each the regardless of the video format. Once approx 30 seconds have passed it continues to work like it should....but annoying part is that it does this with each video launch not just the first time the application is launched. All other applications on my MBP work fine. I did not have this problem before when I only had my HDD in the MBP. Im not sure where it went wrong.Do you think the SMS was causing the freezing within QuickTime?