I don't know from where you write. I do know that this is beyond any bug that i could have made, and related, in any case, with the rpg program itself.The game doesn't show me any texts. The text boxes are all empty.
i remember that i had the same problem sometimes when playing games in japanese. i've asked you about from where you were writing because of this. Depending on which kind of keyboard language configuration you have (greek, arabic, cirillic, japanese..) it could happen that the boxes could be shown without any letters. To check if could be this, if i were you i would try to run the program with an aplocale with english enabled.
I can assure you that there are letters in the boxes. Anyways, to be sure, you could also try previous verions.. but theorically there is no difference, in this regard, with previous versions or the latest one.
once you have checked it out, let me know what happens.