Video doesn't appear to be uploading correctly.

Hi all,

I've created an iAd with the creative option being a Banner that sends the user to a video with the call to action button (download on the app store).

When viewing this on the iPad (iPad 2) in iAd Tester. In landscape mode it shows the video about half way down the screen and you can't even see the CTA button. I've made the video to the video file specifications listed within iAd Workbench. Is there something I'm missing? or could do to fix this?

Thank you in advance.