Babylon Translator - Text to spech not working

I've been using this software some time now, but (I think) after installing Win 8 or 8.1, the text to speech feature does not work. Babylon acknowledges that the software uses the Microsoft Windows engine for this purpose and I know this feature works perfectly in Windows as I have tried it.
I haven't been able to find any answers any where.
Please advise.
 
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