Japanese text

(Sorry if this is in the wrong board, didn't exactly know where to post it)

Hey guys I'm new to the forums, should be interesting as I'm new to Windows 7 (previously used XP and Vista) so I can learn things about my new OS.
I'm running Windows 7 Home Premium 64-bit version which came pre-installed on my Dell computer.

Now the question:
I have some Japanese music on my harddrive, the title names are Japanese. However, this Japanese text is shown as squares in the folder. Windows Vista (Home Premium, 32-bit) always showed the Japanese text correctly so I don't know what the problem is.
Is there a way to show the Japanese text?

PS: I already tried setting the system local language to Japanese, reboot and then set it back to Dutch and then the Japanese text showed correctly but after a few days the text became squares again.

Thank you for your help,
Robin

The Japanese input method editor must be enabled from the Region and Language section of the Control Panel.

I read all the advice here and then decided to pursue it myself.
I found a free Japanese font - there are several on the Net
and installed it.
I highlighted my white boxes and changed to the new font.
Bingo!!
Thought this might work for others - I used Serif Page Plus.
Regards to all