Hello.
I resetup my MacBook Pro, includes resetup my MacOSX and WindowsXP.
Then I will download and setup the newest version about unity3d. (3.5.1), but I do active online, the unity3d web result me : too many times acive…
How can I active my unity3d? I’m pro user.
Thanks.
sincerly yours
Shawn
:shock: 
You need to send an e-mail to support@unity3d.com explaining the problem you are having.
And IIRC, the error message should tell you exactly that, to contact our support team at support@unity3d.com. If it doesn’t then please let us know as it should do so in order to avoid just these sorts of questions and confusion. Thanks!