Yes, I just went into the RealAir download site, and re-downloaded my Turbine Duke, but I didn't try to re-install.
The download was 128 MB, but it was the newer (relatively speaking) version, so that might be the difference with
my original 160 MB installer (which was the older version, later patched up to the newer version)_.
Just fyi.
Thanks - Rob
PS: but if they couldn't find your keycode, are you certain you tried to download the right product? There's lots of T-Duke
download options to choose from, depending on your original purchase.