[luatex] OpenType problems

[Javier Múgica]

I finally got started with LuaTex. I loaded OpenType fonts with the sample
code form the wiki and the fixes suggested by Jonathan some months ago. I
get this very different spacing with lmr10:

\input otffont.ltex  %Here is the callback
\font\tenrm=ec-lmr10
\font\ottenrm=LMRoman10-Regular

\setbox0 \hbox{\tenrm{} } \showthe\wd0

3.33333 pt

\setbox0 \hbox{\ottenrm{} } \showthe\wd0

2.5 pt

Any ideas how to solve it?

By the way, I have sent a couple of messages to the dev-luatex mailing list
some minutes ago and they still don't show up, is it normal?
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