Animation window cut off when importing HTML5 animation into Captivate

Hi,
Please can I ask for help? This is driving me nuts!
I have used both Edge and Animate to create an oam file to use in my project. I have selected media and successfully imported the file. However, what it's actually done is altered the viewer's ability to see all of the animation. It's cut off 40% of the width view.

It doesn't let me resize to 100% within the fluid box.
Has anyone come across this? Would they be prepared to help out someone still learning the software?
Thanks!!
Andrew
