Transitions and html

I'm using Lectora 6 SP5 (4310) and IE 6.0 SP 2.I am updating some WBT files created by another instructional designer who has since left the company. She included transitions (on text and graphics) in her WBT. Her course is currently on the web and working correctly for the users.My task is to update these files. When I publish the course to html, the transitions do NOT show; they DO show in Preview mode. (I have not updated any of the transition pages.)My question obviously is, why are the transitions not displaying for me in Publish to HTML mode?

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