actually I had downloaded it today around 4-5 times within the last 2 hours and always installed immediately afterwards, and now per your suggestion re-downloaded it again. nowhere did it say: "ATTENTION: you have to install immediately after download, or else it expires" and I have never heard of such a thing. I tend to believe the downloaded files have been changed on your end in the meantime? Anyway, it is working now again, thanks for your prompt support Cameron!