Cross-platform license: Ubuntu and Windows 8

I have a machine on which I dual-boot both Ubuntu and Windows 8.  I purchased an activation code which works fine on Ubuntu but is ignored on Windows 8.  I have checked that the application is reading the right objectdb.conf by putting a temporary error in the file.  I'm assuming that the code is somehow linked to the MAC address of one of the network adaptors?  The single adaptor available on Ubuntu  is also available on Windows 8, except that there are other windows-visible adaptors.  Is there a way to configure things so that the activation code is associated with the right adaptor, if this is the issue? 

A suggestion for solution was sent in a support ticket.

Thank you.  Problem solved.