Dear Sukhdev and others,

Blank boxes on a unicode document indicate that your
system or browser does not have a font that covers the
unicode characters in the document. The only way to
fix this is to install a font that does. See the
following sites for downloadable fonts that cover
traditional Chinese (the Chinese characters in
Steven's lesson):

http://seba.ulyssis.org/thesis/howto-fonts.php
http://www.alanwood.net/unicode/fonts.html#traditional
http://www.math.utah.edu/~beebe/fonts/unicode.html#fonts
http://orwell.ru/test/download/

To install fonts on Windows, simply copy them to
c:\winnt\fonts or a similar directory (c:\windows\fonts?)
depending upon your version of Windows.

If you still have problems, try changing your web browser
to Firefox, a free, standards-based browser which is
both cross-platform and fast! It can be downloaded (again
for free) @ http://www.mozilla.org/

Good luck,
Walter