windows8 support

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We tried playback with AMIS3.1.3 on Windows8 and IE10 PC.
With some of the DAISY2.02 and DAISY3 books, we couldn't change font size and color contrast.
We couldn't find the difference between those books.
If someone have same experience, please share with us. We also want to know how to prevent this problem.
Thank you,
Mayu