Can't import old folders into new iTunes on new computer

Question

Morning, all -
I got a new computer and restored all my old folders on it, music included.
When I downloaded iTunes again, I was surprised to find that a) it didn't just import my old music files, and b) I'm unable to do so even manually.
I've tried dragging and dropping the music folders - individually and as a group - into the new iTunes folder (iTunes Media now instead of iTunes Music), dragging folders directly into the iTunes window, and importing folders through the menu bar. None of the options work. I don't get an error message, it just sits there and doesn't do anything (which is even worse than getting an error message, which I could at least then track down to resolve).
It's getting frustrating - it's proving to be a lot less user-friendly than it should be, and for what I would think is a relatively common situation.
Any insight on getting this thing going would be very much appreciated.

Answer 1

Thanks, Chris -
The problem here was that while I'd thought my entire music collection was stored by an online backup service prior to wiping my harddrvie, it turns out that such ISN'T the case. Hence, all the music's gone. So when I did the restore of all the data from the service, then fired up iTunes, while all the music SHOULD'VE been put back in its original filing system (and so, migrated to the new iTunes folders cleanly), that didn't happen. Took me a couple of days of frustration before realizing that while the folder/file structure of all the music was retained, the music itself wasn't. Hence the lack of initial migration, and the reluctance to import any folders manually; the cupboard was bare.
All of this, however, has led to yet another problem. It's related, but a different topic, so I'll start a new thread on it...
Thanks again.