Hello, I just installed Windows XP Pro 64bit, and it was working fine. I activated it over the phone, and everything seemed to be ok. Then I shut down my computer, and when I went to reboot, I get this message: The evaluation period for this copy of Windows has ended. Windows cannot start. To continue using Windows, please purchase and install a retail copy of the product. I don't understand this. I only installed this yesterday, and I thought the evaluation period was 360 days? What can I do? Thank you very much for your help.