By default, HEVEA does not anymore use the FACE=symbol
attribute to the <FONT ...> tag. As a consequence, browser
configuration is no longer needed.
HEVEA now extensively outputs Unicode entities. This first means that HEVEA targets modern browsers with decent unicode support, and only those.
In case your browser is recent and that you nevertheless experience display problems on HEVEA-generated pages, see the excellent Alan Wood's Unicode Resources. It may help to understand display problems and even to solve them by configuring browsers or installing some fonts.