How do I replay slides when using PowerPoint viewer?

I created a PowerPoint 2003 presentation for a client. It contains a
narrative, music and custom animation. Using information gained from a
response by Sonia Coleman to an earlier post (circa 12/2004), I was able to
get slides to replay by adding a blank slide before each of them with a 0
slide transition time. Thanks to Sonia!

However, when I packaged the presentation to CD, the replay doesn't work.
The blank slide preceding the slide that I want to replay comes up, but it
simply remains on the screen.

So, I proceeded with the following test. First, I played the presentation
file from the CD directly. The slides replayed perfectly. Then, I invoked
pptviewer to begin the presentation, and here is where the replay hung up on
the blank slide -- no transition, nada!

Is this a limitation when using the PowerPoint viewer, or does anyone have
any ideas of something else that might cause this "problem."

Thanks in advance for all replies.