Aprostrophes changing to qu. marks/symbols

As stated in the subject, when I upload something with SmartFTP, my apostophes turn to question marks ... quite frustrating. It doesn't happen when I upload to other filemanagers. Can anyone help?

Hello ..

Make sure you are uploading in binary mode and not ASCII mode. SmartFTP doesnt change any data it uploads.

Regards,

How do I do this?