Recent builds since the improved support for the non-Unicode font manager seem to be upsetting the generation of font menus.
Font menus generated within any other application while NetSurf is running seem to ignore any default weights set using the * character in Message1 files. After quitting NetSurf, font menus are generated as expected. I'm using RISC OS 5.14 (22 Apr 2009), Font Manager 3.61 (06 Jun 2008). Evan.