Weird language - setup and lots of "???????????"

Hello there.

This problem have been giving me headaches for a while, but maybe some can help? I tried searching for it, but I found no answer or any problem like this.

I've downloaded the sims 3 (all of them), and tried to install them as described. The problem is I understand nothing at all, and it just writes a lot of "???????". When it moves to the next section, where you can choose different languages, it's in a really weird language (and I've checked if it was Russian, which it is in the next step), and  I cannot google the words, which doesn't seem to even be a real language. For example: äáíéÿ. If I just take one of the languages, then the next step is in Russian - I can use Russian, but I just want to play the sims 3 in a other language.

I really want to play the games in either Danish or English, but cannot see how I shall see though the words, which doesn't seem like a real language. 

I hope someone knows anything about this, and can help me.

Best regards // Siris