[XeTeX] "Missing" system fonts

[Akira Kakuto]

[...]
> Even now I haven't 
> worked out how to get it to access my TeX files automatically - I'm having 
> to update ls-R every time I write a new file.  And all the PDFs that XeTeX 
> produces go in the same directory as the XeTeX program itself, when I would 
> rather they went in the same directory as the TeX file that I am compiling. 
> Again, there is probably a configuration file I can alter to achieve this, 
> and I'll find it soon, but I haven't had to worry about that sort of thing 
> for many years!

Your TeX environment seems very strange.
Perhaps you have mixed different distributions of TeX.
Thus applications are reading wrong configuration files.
Please erase all and reinstall "TeXLive-2007 only" !!

-- 
Akira Kakuto