[XeTeX] Error message with new XeTeX

[Jose Figueroa-O'Farrill]

Hi,

A file which used to compile without problems before the upgrade ---
yes, I like to live on the edge :) --- now displays an error.  The
offending line is

\newfontinstance\hispfont[Color=33AA33,Mapping=tex-text,Scale=0.9]{Arial}

and the error message is

Package fontspec Info: Defining font family for "Arial" with options [Color=33A
A33,Mapping=tex-text,Scale=0.9] on input line 28.
Package fontspec Info: \font is "Arial:color=33AA33,mapping=tex-text," on input
 line 28.
Package fontspec Info: \font is "Arial/B:color=33AA33,mapping=tex-text," on input line 28.
Package fontspec Info: \font is "Arial/I:color=33AA33,mapping=tex-text," on input line 28.
! Cannot use \XeTeXOTcountfeatures with Arial Italic; not an OpenType Layout font.
\zf at check@ot at feat ...OTcountfeatures \zf at basefont 
                                                  \c at zf@script \c at zf@languag...
l.28 ...=33AA33,Mapping=tex-text,Scale=0.9]{Arial}
                                                  

This error repeats 100 times and then XeTeX aborts.

I don't understand the error, but then I understand very little about
fonts.  I just like the way they look :)

Cheers, José

-- 
Prof José M Figueroa-O'Farrill  | Phone: +44 (0) 131 6505066
School of Mathematics           | Fax: +44 (0) 131 6506553
University of Edinburgh         | Mobile: +44 (0) 7870 239186
Edinburgh EH9 3JZ, Scotland, UK | URL: http://www.maths.ed.ac.uk/~jmf