First, you can check the "Game.ini" file on the folder itself.
It should state the following:
The major thing to note is the "Library=RGSS103J.dll" line. If it states "Library=RGSS102E.dll", please replace it and the Japanese text should now be displaying.wrote:[Game]
If that does not work, see if you have the "MS Gothic" font installed on your computer. Unfortunately, I am unable to provide this because this font is commercial.
If anyone wants to chime in and help out, please feel free to!