Stuttering Audio in iMovie Transitions

[ericmjl]

I have been experiencing stuttering audio when I apply a transition (such as fades or wash outs) during that period. Does anybody know why this stuttering occurs?

For an example, please see my podcast page of the UBC School of Music:
http://web.mac.com/ericmjl/iWeb/Site/Music Podcast/41B8AFEA-C8F4-4442-8367-ADE900D0A3F8.html

Thanks.