Michel- As I recall, the 4 Generation Pedigree report uses (regular) Text font. The 5 and 6 Generation Pedigree Reports use Small Text font. Click on File-Page Setup to change these fonts.
But you probably have the "Too many Fonts for Win 3.1 Foxpro 2.6" problem and need to delete a few of your existing fonts. The number of fonts that UFT can support is limited to around 250 on most computers. Note: the 4 Gen. Report can be exported in RTF format, but the 5 and 6 Gen. Reports which use Small Fonts cannot. Also note that if your place names are truncated to 20 or so characters, you can change the Small Font to Arial Narrow and get more characters.