Hi Cathy
Are you recording the audio using Captivate or PowerPoint? I
ask because you said "I'm using PowerPoint slides and narrating
them". So not sure if this means you are doing things in PowerPoint
or in Captivate.
One possible approach would be to use an external recorder,
record the narration and save as .WAV or .MP3. Then bring those
clips into Captivate as a separate process.
Cheers... Rick