Test your computer to see if it is able to display Japanese text here.
If your computer failed the test for text support, read and follow the directions here. If your browser failed the test for ruby annotation support, read and follow the directions here.
Read Computing in Japanese on Wikibooks to learn how to input and display Japanese text.
If you are using a Mozilla browser, you may need to install this support patch to view Ruby annotation correctly.
This will check to see if you configured your computer correctly.
Take the test again and try again if it does not work.
Leave any questions on the talk page or here.