Adsense ads not showing or public service on front page only

After recently upgrading to wordpress 2.6, I have been experiencing problems with Adsense ads on my main page that previously worked fine. I was well within the adsense policy and had nothing in violation of it on my site. Sometimes I would get public service ads, or the ads would be missing entirely…

To simplify things I deactivated the adsense plugin I had been using and now have a single skyscraper ad in a text widget in the right and left columns. This worked fine for awhile, but now I am experiencing the same problem with only two ads. see —> https://www.chicagobarrister.com
In additon, the ads on this page are not targeted at all.

But through all this, the ads on specfic pages have been well-targeted and working great. See —> https://www.chicagobarrister.com/politics

Any ideas? Thanks!!