After updating iInstaller and TeX, I installed XeTeX and when I ran xetex XeTeX-notes.tex I got this error. This is XeTeX, Version 3.14159-2.1-0.88 (Web2C 7.5.2) kpathsea: Running mktexfmt xetex.xfmt fmtutil: no info for format `xetex'. I can't find the format file `xetex.xfmt'! Alan