Originally Posted by DTM
I'm just looking for a way to change the font as displayed in Sigil.
Currently, no. The Book View uses whatever system font QtWebKit feels like using. But the Book View does perform font substitution, so if there's a font on your system capable of showing a needed character, it will use the glyph. It could be screwing things up though.
QtWebKit (which in turn is based on vanilla WebKit) used in Sigil is currently a year old since Qt 4.6 is a year old. Qt 4.7 is just around the corner, so when that lands, there will be a fair amount of bugfixes and improvements to Book View.
If the problem persists after Sigil migrates to Qt 4.7, create an issue on the tracker and I'll look into a workaround.