OpenInfoWindowXSLT and International Characters

Hi - I have a GMarker.openWindowXSLT call which works fine and always
has.

However, international characters in the output don't get displayed
like they would with plain HTML. For example, the street address "50
Laperrièré" diplays with the ugly characters instead of the
correct "50 Laperrièré".

This works perfectly if I use marker.openInfoWindowHtml("50
Laperrièré").

What do I need to know here to make the XSLT output properly display
international characters?

Thanks,
-Randy