diff -up vegastrike-source-0.5.0/setup/src/include/display_gtk.cpp.foo vegastrike-source-0.5.0/setup/src/include/display_gtk.cpp
--- vegastrike-source-0.5.0/setup/src/include/display_gtk.cpp.foo	2008-09-08 16:42:15.000000000 +0200
+++ vegastrike-source-0.5.0/setup/src/include/display_gtk.cpp	2008-09-08 16:42:21.000000000 +0200
@@ -66,7 +66,7 @@ void myexit(int exitval){
 #ifdef _WIN32
 	int err=(int)ShellExecute(NULL,"open","documentation\\readme.txt","","",1);
 #else
-	execlp("less", "less","readme.txt", NULL); //Will this work in Linux?
+	execlp("xdg-open", "xdg-open", "/usr/share/vegastrike/documentation/readme.txt", NULL);
 #endif
 	exit(0);//exitval);
 }