Loading special characters while using process chain

Hi experts,

I face something strange.

While maintaining Dimension Members using web interface, there is no problem; and descriptions well appear

Nevertheless, while I'm using the standard process chain to load members from flat file, system converts french é, à, ù etc... with special characters, like this.

does someone already met that king of thing ?

any idea to solve this ?

tks a lot :

Olivia.