Published modules no longer work in SharePoint

Hello,

We have a dozen or so published modules that have been uploaded to our company intranet site on Microsoft SharePoint 2010.  The modules have played perfectly for over a year with no problems.  All of a sudden they no longer work.

When a user clicks the link for the player.html file, it launches a blank slide showing the Articulate Presenter skin, and saying "slide 100 of 160; Presentation Complete".   However, none of the modules have anywhere near that many slides.  For some reason, all of a sudden the player.html file is not reading the directory structure of the module properly and is launching some random slide from who knows where.

I'm getting the same results on all Articulate modules loaded to the site - they all launch the exact same random slide (remember - they all worked fine yesterday, so the directory structures were correct).   Interestingly enough, our Captivate and Smartbuilder modules are still working properly.   Our Articulate modules are also working properly on local hard drives, and in our LMS; just not on our SharePoint intranet. 

I tried re-publishing and re-uploading the module with and without SCORM; and uploading it to a different location... nothing helped.  We still get the same blank Presenter slide.

Our intranet IT guys say it has to be a flash issue (in other words, not their problem), but I find that hard to believe since all our other flash files are playing correctly, and our Articulate files are playing fine locally and in our LMS.  I've tried this in both Internet Explorer and Mozilla Firefox, so it doesn't appear to be a browser issue.  Does anyone have any ideas what could be causing this?   We have mandatory trainings posted that our staff can no longer view... any help or ideas would be greatly appreciated.

Thank you.

Toni