my project is comprised of WAV. audio file and still JPEGs arranged in a slide show with fade transitions. I'm trying to create video narration of a story for our website at work. I was told that mpeg-4 would be the best format for this.
Depending on which version you have the mp4 codecs may not be installed.
Does a window open under the MEP window and you cannot see it?
Try putting a mp4 video on the timeline - if the codecs are not there you should be prompted to download or activate them - you may have to purchase this depending on the version.