Yikes, I've had a friend on Windows 7 (also 64 bit) run into a similar issue before, except along with the menu/text messages not showing up, the side images (like sprites of Diya) also wouldn't show up! I think certain graphics cards for some reason interpret the way the game is displayed differently :( Could you check if your graphics card drivers are up to date?
If you close the game and access the menu through the main title, are you able to see the text then? Also, does it make a difference whether you're in windowed mode or fullscreen? I'm really sorry again for the inconvenience!