Completely agree Normandie. Whenever I am happy Coffeecup user since 2001 here some bug in the way. For example free editor http://www.pspad.com/en/ is working for Central European characters much better than Coffee cup.
I can not write in editor character ? because it cames out something different. Instead of coma I can get only character æ which is Nordic and not central European.

I atached file with critical characters.

Actually what Coffeecup is doing with editor last year is exactly same as Eudora mail has done with there sofware 10 years ago.
First it works great. Later users from some countries can"t write properly characters. In the end only English writing users were be able to use Eudora. Today is it mail for free included in Thunderbird.

Andres