Same thing. “Unexpected error: -2.”
Prior to that, when it first displayed the Activation dialog, it said that it did not detect an Internet connection, and yet I could surf and email and IM just fine. Just now, I tried it again, and this time it said “Internet connection detected,” but still would not accept the activation (same error message).
We use no proxy server, and have a NAT firewall plus Windows Firewall. I tried disabling the latter, but it didn’t help.
Dreamweaver CS3 (the last version that can work with ASP.NET).
Specific extension (but we have lots of yours): CSS Form Builder