Sims - Tierisch gut drauf (Unleashed)

[Kazzy]

Hi all...
I've bought the game a hour ago and installed it.
First it loads but with soundproblems like the other versions on my computer. Then I wanted to drive with the new Bus to town and buy a dog. On the way (BusPic) my computer stoped loading!
Ok... I restarted the computer but now it appears a errorbox and it says that an unknown error occured in Sims!!!!!(like a copied CD but its the original!!!)
What can I do? Help plz.... Thx.....