found out that it is actualy cause the auto analyzer says the narration file is corrupted.....okay so how to i fix that
The problem is with your system's set-up. But in order to diagnose it, we will need much more information -- including how your microphone is attached to your computer. Is it plugged into your audio card or is it a USB microphone? USB microphones often will not work with this program.
What type of camcorder is your video coming from and how did you get it into your computer? When you started your project, which project settings did you select? If you selected the proper project settings for your camcorder, there should not be a red line above the clips on your timeline until you add effects to them. Is that the case?
When clips do have red lines above them, do you press Enter to render them? (They will turn green and your computer's performance will improve greatly.)
How fast is your processor and how much RAM do you have? Which operating system are you using? Have you ensured that you have even the non-critical updates as well as the latest version of Quicktime?
How much free, freshly defragmented space is on your C drive? Are you working with more than one hard drive? If so, are all of your drives formatted NTFS rather than FAT32 (as they come from the factory)?