[TxMt] LaTeX log error parsing

[Mark Eli Kalderon]

FYI, Typeset and Preview didn't capture the following error message  
in the log:

/usr/local/texlive/2007/texmf-dist/tex/generic/pgf/systemlayer/ 
pgfsys.code.tex:
847: Package pgfsys Error: Driver file ``pgfsys-xetex.def'' not found..

Best, Mark