Few days ago something happened that made me confused, as I open the blog and the google toolbar show my page rank indicate N / A (unranked) what's this? Then I tried using the web to check the page rank google and found similar results.
What exactly happened? Then I find out what really happened behind this oddity. In the forum and some friends did say that at this time google made some changes in terms of page rank.
One solution that I find through the forum is through SeoQuake (which I use to check PR):
Click seoQuake icon and point to preferences and go to google page rank and editReplace with this :