prob with multiple audio files on one page playing same time

I have 3 audio files on one page.

file 1 is set to AUTO START and is set to VISIBLE

File 2 in NOT VISIBLE and NOT AUTO START

File 3 in NOT VISIBLE and NOT AUTO START

File 2 and 3 set to play if an answer is right or wrong.

PROBLEM: all three play at same time when entering page. IN F10 MODE IT RUNS FINE. THE PUBLISHED VERSION SHOWS THE PROBLEM.

cannot find out problem and almost think theres a bug.

I'm also using SHOW and ONSHOW actions to reveals and hid the audio clips.

In a last ditch effort, it put an action on each file to stop the other audio files. everything still plays.

any ideas?

I tested without using any SHOW or ONSHOW and it works fine -- audio files play one at a time according to needs. this has all three audio files visible at all times. But, again, I would rather only show one at a time when it plays so user doesn't get confused and try to play one manually.