When setting up 1.5.1, I had a problem with fortune
that turned out to be the wrong path. With my distro
(Fedora Core 3), /usr/games/fortune exists, but it is a
folder not the binary. As such, I suggest the
following change to the functions.php file to catch
this and report that the program was not found.
< $exist = is_file($fortune_location);
> $exist = file_exists($fortune_location);