But I ran the game many times already. There's got to be something about my German speaking Vista that has hidden the file from me.
You see, I even uninstalled the demo once, then installed it again, and as I ran it, I wasn't asked to choose the resolution. Doesn't it mean the pref file was already there? Even still, even the Vista find function cannot find the file on my hard-drive. It seems as if it was saved as a registry entry or something.
Lucky me, there was a solution to my white-text problem elsewhere.