I've used for a couple of weeks Windows 7 Ultimate x64 with 8 GB RAM and an EMU 0404 USB.
First, I've installed Garritan Steinway Pro on it. I used it stand alone with ASIO and it worked perfectly.
Then I got GPO 4 installed and this makes my Steinway crash after it finished to load its sample.
The only way to make it work again was to uninstall GPO 4 and Steinway and the to re-install Steinway alone.
Any ideas about what is wrong here ?