[texworks] Unicode characters above USV+00FF not displaying

[Dennis Pepler]

I am completely new to LaTeX, not even a newbie, I'd say. Very soon I 
have to typeset a linguistic thesis written in MS Word - ~520 A4 pages 
with over 1,000 tables, and a vast bibliography. The publisher expects a 
TeX file.

As a first step I've used Word-to-LaTeX to produce a tex input file. 
Various TeX editors have failed to compile the document, so I am first 
ensuring that, in TeXWorks, I can compile a simple one page document 
which uses Unicode characters above USV+00FF. So far success is only 
partial.

In TW I have set xelatex as the compiler, overriding the default 
pdfLaTeX which was finding errors.
The font is set as Calibri 10pt.
When I invoke the Typeset command the document compiles but Unicode 
characters above USV+00FF are not displayed.
Visually characters either side of the missing characters appear next to 
each other. I have not yet investigated to check whether the missing 
characters are replaced by zero-width spaces, (a problem encountered 
elsewhere in MS Word).

What should I do to get the full text to compile and display in the 
output file, please?

Dennis Pepler,
MissionAssist, Unicode Technical
MissionAssist is a working name of Wycliffe Associates (UK) Trust


----- configuration info -----
TeXworks version : 0.4.6r.c29723a (official)
Install location : C:/Program Files (x86)/TeXworks/TeXworks.exe
Library path : C:/Users/Dennis/TeXworks\
pdfTeX location : C:/Program Files/MiKTeX 2.9/miktex/bin/x64/pdftex.exe
Operating system : Windows 7 Service Pack 1, 64-bit
Qt4 version : 5.4.1 (build) / 5.4.1 (runtime)
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