I'm seeing something similar to this also in v3.0.9. My symptom differs in that I do see Page Rank, but HTML validity (including response code, broken links, and several other related columns) all say "Not yet checked".
I tried selecting all of the links in the Website view as recommended by
Theresa@resh.com and clicking "Update" and choosing "add more backlink factors", but I don't see any additional factors that appear to be related to HTML validity characteristics.
What am I doing wrong.
Mark