Is this the official supportforum? Is there another place to get support on this issue?

Any help with this?
If there is no solution to the problem, who do I contact to demand a refund?

kalimerre wrote:What's the size of the complete game ? And do you try to run the game as administrator during update ?

All my 3 downloads are 1 152 041 kb. I have tried running the game as administrator to no avail.

I cant get this game to work. I have downloaded the game 3 (!) times, using both the "Downloader" and using the direct link. It always halts setup saying that files are corrupt. I tried downloading the "beta installer" and let it update the game. It downloaded the 900+ mb update ...