Dear all, 
I'm having a strange behavior.

I'm using \in to refer to figures, like in the following:

%%%%

La situazione č schematizzata in \in[structure].

\placefigure[][structure]{Struttura di SC.}{\externalfigure[img/structure][width=.7\textwidth]}%%%%
The code has always worked, but this morning the refs in the text are replaced by ?? (while img is correctly displayed, with correct numbering).
Any hints?
Thanks
Best
-a-
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Andrea Valle
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CIRMA - DAMS
Universitā degli Studi di Torino
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"
Think of it as seasoning
. noise [salt] is boring
. F(blah) [food without salt] can be boring
. F(noise, blah) can be really tasty
"
(Ken Perlin on noise)