swipl on Fedora 20

I have installed swipl on my fedora 20 machine, using the command "yum
install pl pl-devel".

When starting swipl I get this result:
Welcome to SWI-Prolog (Multi-threaded, 64 bits, Version 6.4.1)
Copyright (c) 1990-2013 University of Amsterdam, VU Amsterdam
SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to redistribute it under certain conditions.
Please visit http://www.swi-prolog.org for details.

For help, use ?- help(Topic). or ?- apropos(Word).

?-

so one would think that it is installed correctly. However, I can't start
manpce.
This command results in:
?- manpce.
ERROR: toplevel: Undefined procedure: manpce/0 (DWIM could not correct goal)

Question 1: How can I fix this?

Another problem is that sometimes while entering a command, the first
character automatically changes from lowercase to uppercase. (I can't
predict if this will happen or not).

So entering 'simple' changes to 'Simple' resulting in:
?- Simple.
% ... 1,000,000 ............ 10,000,000 years later
% 
%       >> 42 << (last release gives the question)

Is this behaviour intentional? (And is it correct that the message refers to
the hitchikers guide to galaxy)

Ben



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