Allen,
As I've stated before, we have simular if not the same problem. I've noticed that when I open General Options, my comptuer is busy for a few seconds. With the new Hal6cr, the general options screen opens up on the page you last closed it on. I can see when my computer is busy, the highlighted voice file is stepping down, one voice at a time, till it reaches Mary in Stadium. I have to reselect the proper voice each time I open General Options, if I don't, I get the Mary in Stadium voice. But if I select the voice Mary then exit General Options, everything is fine till I reopen General Options.
I don't know why opening General Options makes it step down to Stadium mode, but it does on mine. Perhaps you can select the proper voice, then exit General Options to see what voice you get.
Again, the only way I can get the correct voice is to select the proper voice every time. Another note... Not all voice selections cause this stepping down the list option. The british voices don't seem to cause it, but they're so unatural sounding on my computer. Mary is the only one that sounds like a woman.
I hope this information will give someone an idea on a fix. (fingers crossed)...
Thanks.