Bill, it DOES matter if you have 360 fonts installed.

I got the wee boxes, then I switched my browser's default font to Lucida Sans Unicode and I saw the schwa.
(I saw the schwa, I saw the schwa, no more boxes with me saying 'duh', now I'm so happy, cuz boxes are 'blah', Praise the Lord, I saw the schwa)

Anyway...
MSIE, Tools, Internet Options, 'Font' button (at the bottom) and mess with 'web page font' on the left side.