[Xy-pic] question

[Liviu Ornea]

Hi,

I work on a Windows system (sorry!), with Miktex. 
A diagram I made with xypic doesn't appear (I tried to compile with Latex and Pdflatex, it's the same). Only the horizontal lines are correct. The commands [dr], [ul] are printed as such.
The same file has no problems when compiled under whatever Linux.

Can you help me?

Thanks.
Liviu


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