This is my second HD+. It downloaded to the first HD+ fine, it is only my new one so it isn't the HD+. There isn't an SD card in it.
Hi SherryT,
I'm not a member of the support staff, nor do I have any prior experience with Nooks... but it seem that the obvious reason your 2nd HD+ won't download the game is that it lacks an SD card.
Also, looking at a comparison between the Nook Tablet and HD+ (which you can see for yourself
here) it's mentioned that something called the "Maximum User Storage" of the HD+ is half that of the Tablet. (which is why ~ I'm thinking ~ you need that SD card in the HD+ for your download to complete)
If adding an SD card to your new HD+ doesn't help... then, well, I'm sorry but that was my best shot.
The thread is open to (and enthusiastically accepting of) any contributions from seasoned Nook users.
~A