Having a problem setting a user-define file name. 

URL's are of the form:
  <http://localhost:4000/PmWiki/index.php?n=Projects.Main>

What I want to end up with is for files with the n parameter to be named as
the n parameter:
  pmwiki\localhost_4000\PmWiki\Projects.Main

Options are set to:
  %h%p/%[n::::%n_%q.%t]

However, I end up with files named:
  pmwiki\localhost_4000\PmWiki\index9696.html

In fact, even simpler file formats don't seem to affect the resulting file
names. They always end up index9696.html format.