Yellow_Sun - 4:09 pm on Jul 4, 2011 (gmt 0)
We had a similar situation happen so I'm guessing G is still working out the kinks in the latest PR update.
We launched a website that went basically straight to a PR 6. The domain name is outstanding and aged but never really was developed. So we developed it but it doesn't really rank for anything just yet and only has about 3 in-links, brand new.
So, we are seeing what G will do from here.