Video Playback issues in HTML5 using IE10

Hello All:
We built a project in Captivate 6 and published it to HTML5. The project contains two videos that were converted to MP4.
When running the program in Chrome, all works as expected. However when running in IE10, no video is played. Any solutions?

I am also having a similar problem with slide videos in HTML5 projects. The video plays as it should when the slide is viewed for the first time. However, if the slide is revisited later, the video does not appear and no audio is played - there is just an empty space where the video should be.
In addition, when the slide video is finished playing, it will automatically restart, replay the first 1-2 seconds of the video, then stop. Neither of these issues occur when publishing the same presentation as a SWF, but I am developing for iOS devices and really need the HTML5 output. These issues also do not occur if I insert the same video file as an event video instead of a slide video; however, I need the users to be able to pause video playback, and it seems slide videos are the only way to provide that control in HTML5.
Here's what I'm using:
Captivate 6.0.1.240
All videos are .mp4
HTML5 output tested in latest versions of Safari and Google Chrome with the same result.
Any ideas or help would be greatly appreciated! Thanks.

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---------------Code Begins-------------
import flash.events.Event;
import flash.media.Video;
import flash.net.NetConnection;
import flash.net.NetStream;
showRedrawRegions(true); // both the placeholders and the entire window redraws every frame.
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---------------Code Ends-------------
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- App code was written in. (e.g. Flash CS4 IDE 10.0.2, Flash Develop 3.0.1).
- App code was compiled in. (e.g. Flash CS4 IDE 10.0.2, Flex SDK 3.4.0.6955).
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When both videos are attached, video1.videoWidth = 0, video2.videoWidth = 1920
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