I forgot to add I am using Captivate 5.5. Thanks to anyone who can help.
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If you click Edit > Preferences > Project > Publish Settings do you see a check mark in the option labeled "Include Audio"?
If not, that's your issue. If so, there is more detective work to do.
Helpful and Handy Links
Thanks Rick! That worked!!! Whew!!!!! Really appreciate the time you took to help me out. Now I recall Tim in one of the tutorials mentioning that! Cheers and many thanks!