Xbox 360 Language

[Vacation]

Hello there! I was in Poland yesterday 27.12.10 and I bought Mafia 2 to Xbox 360. So when I Launched the game I got a very weired language. Like russian alphabet. I think that that is chech. So my Question is. Can I change the language or do I need to buy a new game? Since im not in Poland now.

Help me please!

- Adrian