Last week, I installed Windows 7 Ultimate x64, activated online, and everything went smoothly. However, every day after midnight, Windows informs me that it hasn't been activated (via the version number and text on the desktop). If I go to "My Computer | Properties", however, the windows "genuine" seal appears and the desktop text disappears. Does anyone know why this is happening? And is there a way to stop it? I have a genuine copy of the OS.