I've have been playing the game Icewind Dale II for the past few years on my laptop (windows XP). It's the japanese version and in order to play it, I had to go into the regional settings and change the default language to Japanese and it displayed the Japanese font correctly.
I haven't played it in a few months and decided to try it again last night. It would not display the Japanese characters correctly. The only thing that has changed since I last played it, was that I reformated the hard drive recently and before the reformatting, I was using Windows XP Pro and now, after the reformatting I am using Windows XP Home.
A colleague at work told me to download this http://www.microsoft.com/globaldev/tools/apploc.mspx
and it should work. Anyone ever hear of this or have had a similar problem such as this?