There is a trick, which I am not fond of tricks to make a commercial program work properly, but if you select another voice, perhaps from the same company, and then select the voice you want, it sometimes works. It seems that information in some of the voices is necessary to make other voices work. A patch from the companies that make these voices to correct this would be nice. Since they probably aren't listening, perhaps if someone dropped them a line as they may not be aware of this. Also, I wonder if Haptek knows or if it is something from their end.