Ah, thanks! I get it now. And it handles my initial problem of having an empty page returned when first hitting the narchives.php page.
Odd though that you don't get the same problem with Title or Date display (i.e. that all years will return null and that a specific year has to be selected to return something). I didn't change anything on the code, except for that one line now.
On the other hand, posting to this forum seems even weirder since yesterday! first the above 2 posts are there, then they are gone (this morning) and I repost, but now the repost is gone. After that I suddenly had some weird posting of 'mine' (i.e. my name but obviously a spam posting) show up in the forum but with no content when clicked onto the post link and then I posted a question about if it is possible to steal somebodies identity here (i.e. subscribe with the exact same name as already exists). but now that posting is gone plus the spam and the 2 postings from above show up again. LOL. I think I need an overhaul. It is Memorial Day after all;-)