Remember I am not an avast! team member, just in here “for the good of my soul”

…and mine! Impressive knowledge of resources! I think the fact that none of these sites are identifying any particular pages at DTH and certainly not the pages that Avast! is identifying as problem pages is dispelling any doubts that the problem is with Avast!

I went to report the problem at the link you provided but when I went back to the site to reproduce the reported error, Avast! had suddenly stopped reporting a virus at those links so I couldn’t complete the report at that point. However, I had setup the URL as an ‘exclusion’ in my copy of Avast!; it hadn’t worked before but may be working sporadically. Will try to remove the exclusion and see if I get the error reliably and will report it then.

But again, thanks for your efforts and considerable wisdom.
J.