Diablo® III

An unexpected error occured while trying to install. Please try again or contact costumer support
That is the error I get when I try to install Diablo 3. I downloaded it the same day you were able to download it but now when I try to install it I get that error and I have followed all the tips that blizzard has given me and the 100 mb installer they told me to download, when I clicked download on that one I downloaded 7 mb and got an installer that's looks exactly the same and now I have to download the game again and it says about 3 hours left when I have already downloaded the stupid game.

You should not put that 7mb installer IN THE downloaded folder.. put it near and it will only check already downloaded files and upload something about 58mb and will start installation automaticly and without any error