SQL 2012 Installation hangs

Hello,

I try to install SQL server 2012 on a fresh installation of Windows 2008 R2.
The setup starts normally and the server freeze 3 minutes after the begining of the installation.

I need to hard reboot the sever to get the hand !

3 times the server was reinstalled.
I have unselected the full text search as I saw at http://connect.microsoft.com/SQLServer/feedback/details/409403/installation-of-sql-server-2008-hangs

The full install of SQL Server 2012 is not possible ?

Thanks

MMM