I have a purchased copy of Adobe Lightroom 5.
I replaced my desktop computer, and am trying to install Lightroom 5 on it.
I downloaded Lightroom 5 via the Creative Cloud installer, and when I go to activate it, it tells me my serial number is invalid.
I've both typed-it-in and cut-and-pasted it. When logged into adobe.com and looking at products, I see my serial number listed for Lightroom 5 as a valid product.
What can I do to get this working?