Kobo devices don't come with any monospace font. If the book's stylesheet specifies font-family:monospace; then the ePub reader will try to use the "Courier Std" font, but even if that font were installed it wouldn't work because the pathnames used by the ePub reader to request the font are wrong. This patch lets the EPUB reader use any font with a name beginning "Courier" (such as Courier Prime, available at http://quoteunquoteapps.com/courierprime) as the default monospace font instead of just Adobe's Courier Std font, and also corrects the pathnames so that it can be found. If no suitably named font is installed then this patch will have no effect. To use a different font name, change "Courier" in the replacement string to another font name prefix (7 letters max.). For example, change `normal/Courier` to `normal/Dark`, `bold/Courier` to `bold/Dark`, etc. to use HP's Dark Courier font available at http://h20000.www2.hp.com/hpsc/swd/public/detail?swItemId=lj611en