IE 11 Focus Issue

Hi,

I was not able to find any answers to the issue of focus and tabbing in IE 11. I have created an HTML5 project using Captivate 9. Tabbing works great on the Mac side of things as well as with Chrome in Windows. It does not work with IE 11. Does anyone know of a methodology that can be used to get tabbing working with IE 11? Any help would be appreciated.

Thanks!