I have been using a test system for awhile with server 2008 installed.  I just recently realized it needed to be activated unless I wanted to lose access to my virtual lab...

So I went to activate the server using "show me other ways to activate"...  The hyperlink was unavailable.

By unavailable, I mean I would hover with the mouse over it and it would not behave as a link...

I performed my usual troubleshooting steps: logoff/logon, reboot to no avail.

I next proceeded to change the product key but fed it the same product key I used to install.  Once done, I went to activate windows again.  The links were available as expected.  Windows hoodoo...

The activation worked using the activate by phone feature if you are wondering.  Business as usual.

Read the complete post at http://owsug.ca/blogs/brad/archive/2008/11/20/Weird-Server-2008-Activation-Issue.aspx