Hi
I have just tried to install hoster again and it does the same thing message as follows:
"You can install and register this product on 2 different computers. Our records show it has already been registered on 2 computers. If you feel this is an error, please email
support@mtu.com with your registered email address and explain what the problem is. We will review your request and email you back what to do."
I have done that.