diff -r 7abb69436c2b src/gui/mainFrame.cpp
--- src/gui/mainFrame.cpp	Sat Aug 02 05:39:24 2014 -0400
+++ src/gui/mainFrame.cpp	Sat Aug 02 05:40:32 2014 -0400
@@ -2840,9 +2840,9 @@
 	string s;
 	s=locateDataFile("3Depict-manual.pdf");
 
-	//Also Debian makes us use the lowercase "D", so check there too.
-	if(!s.size())
-		s=locateDataFile("3depict-manual.pdf");
+	//Also Fedora has diff dir
+	if(!wxFileExists(s))
+		s="/usr/share/doc/3Depict-0.0.8/3Depict-0.0.8-manual.pdf";
 
 	//FIXME: under windows, currently we use "manual.pdf"
 	if(!s.size())