The other day, I had problems viewing a document, because it was encoded in ANSI. So I went and changed the system language to Chinese (nothing AppLocale could fix for some reason). When I was done, I switched back to English. Now, all Japanese characters has a Chinese looking font (noticeable especially on the Katakana):
I cleaned the C:\WINDOWS\Fonts folder and re-installed them all directly from the Windows XP disc, but the issue still remains. I also went to the "Regional and Language Options" applet in the Control Panel and disabled/de-selected anything that had to do with Chinese languages, fonts, etc.
Very frustrating. Has anyone ever experienced the same? I've been searching on the net for hours, but I find nothing related to this...
It's very strange how this actually worked. I mean, I did clean out the font folder completely before I re-installed it, so I don't get how the installation didn't fix it. Either way, thanks!
Oh, and sorry I'm unable to properly accept your answer, because I have no longer access to my temporary user. I was running CCleaner and thousands of other different tools to try to fix this.