I just wanted to say that, even if you solution works (glad to hear that !) I think it can be considered a "workaround" IMHO..
If you read the article of the link I've posted above (google webmaster) they say to use the rel=prev/next in the "head" of the page as a solution.
And the developer of the q2a page has done it.
But it's not working.... as you have reported (thanks for that)
The problem could be *how* the url has been written in the href field.