First of all, thanks for sharing your work with this GuestBook plugin.
I've just hit an issue with the truncate feature of the widget.
Please take the following comment as an example:
Super! Votre site est très joli et à votre image!
If you choose to truncate to the first 24 characters, we can read:
Super! Votre site est tr ...
=> Work as expected
With the first 25 characters:
Super! Votre site est tr� ...
=> Doesn't work as expected, the special characters has been corrupted
The first 26 characters, we can read:
Super! Votre site est trè ...
=> Doesn't work as expected, as we have only the first 25 characters.
Can it be an issue with my setup/configuration?