Problems with Captivate Redirects, possibly Flash Security and XML

Hello fellow Captivarians,

First a little backstory, earlier in the year we developed a course that heavily used external image files, which were gathered and organised through an XML file, then placed into Captivate 4 through a widget. This was all developed in Actionscript 3 and was designed to be accessed locally, on the user's computer from a CD Drive.

We had a whole deal of issues with Captivate and Flash security issues, finding that we could not get the importing to work correctly in Internet Explorer as it outright refused to import the XML file (Presumably because of security issues). However, Firefox would work fine. Eventually we got it working via a bandaid solution by prepackaging the course with a firefox portable install.

Now many months later, we have discovered our previous solution still works, but it now outright denies any redirects from HTML page to HTML page, regardless if the content is on the CD or if it's on the harddrive. Buttons that link to external sources will not work, (even if it's just a local page in the same directory).Flash player simply refuses to redirect between HTML pages. We tried some older projects that were developed in AS2 - and this wasn't an issue.

The odd thing is however, on my computer it still works fine. However, on everyone elses in our office, it will not redirect at all. We are all running the same version of Flash Player, and the same version of Firefox...

Any ideas? Could it have been a recent update with the Flash Player that prevents this sort of interaction?

Cheers.