Suggest contact Gigabyte Support,
http://www.gigabyte.com/about-gigabyte/contact-us.aspxPerhaps there is a way you can put the disk in your computer, and Gigabyte can see it is a valid CD. Then they may issue a new product key.
(Or I'm dreaming)
What program is it? Post back in a Comment.
Regards,
joecoolvette
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