accentued characters error, superscript error

Hi,
using Agg, there's problems exporting plots in pdf format, all accentued
characters are not displayed (like u'accentué'), but they are in svg files.
In svg files, superscript characters are set to subscript (using TeX
notation). Is there solutions to these problems?
thanks

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Lionel Roubeyrie - lroubeyrie@...1068...
LIMAIR
http://www.limair.asso.fr