I have a Gigabyte motherboard that was flashed with a SLIC 2.1 Dell Cert Bios. Windows 7 Ultimate OEM was installed and it worked for two years (even had the Dell logo and customer service phone number) but for some reason it now shows as not activated. Any ideas as to why or suggestions as to how to reactivate will be greatly appreciated. Hoping I don't have to reinstall Win 7. Thanks in advance.