Checked through the forums, couldn't find a match for this. I'm at Ubuntu 10.04.
Firefox 3.6.12. Shockwave Flash 10.1 r85.

One of Apple's KB items is showing a square box instead of the apple symbol:
From the Apple () menu...
The page encoding is UTF-8 in its header, and Firefox's character encoding is
set to UTF-8 too.

Refreshed the font cache--no joy.

Checked language prefs Edit > Prefs > Content > Language and it shows
English [en]
English/United States [en/us]
Even Chromium is displaying a rectangle for the same character.

Not a show stopper, but I wanted to contribute what I could to move things in
the right direction.

(/|\) Peace