Text and sound delay and issues when learners view file

Hello,

Learners who completed a module for me as a school assignment in a master's program had issues with sound and text being delayed and sometimes images disappearing and never re-appearing. I did not use timing on any of the slides.

The learning was created on a Windows computer, and all of the learners viewed the eLearning created with Captivate on a Mac computer (we all work in the same office and all have Macs).

The way they viewed it is detailed below, the file was too large for Adobe's free server.  Any ideas on what is wrong and how I can fix it?

Thank you,

Kasey

2.  Right click the file

3.  Extract the file

4.  Double click the file named index_scorm

5.  Click ok

6.  The eLearning module will play