> My guess is that, as suggested by James Cloos, the problem resides in the
>unicode-math package for 64-bit machines when compiled with xelatex.
I have tested your file with the 64-bit XeTeX on Solaris 11 and the horizontal
line
is not there. On the other hand, the 32-bit binary produces correct output.
a.s.
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Apostolos Syropoulos
Xanthi, Greece
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