Getting started... What's missing?

[John B. Egger]

My Linux installation is LyX 1.3.4. Here's my rank-beginner's question: 
How do I get the text I'm typing to show spaces and punctuation marks? 
I'm following the Tutorial, and only seeing Whynospacesinmytestfile? 
(except that the ? is an omega, and so forth). When I view it with the 
DVI viewer it looks OK. In the screenshots on lyx.org, the text being 
entered looks normal (Times-style font, spaces between words, etc.).

What have I failed to install, or am otherwise missing?

--John
Registered Linux User #291592