Hi, We are strictly white hat so I was surprised to find a white(not even grey) bar this morning. We recently chaged hosting providers but made no changes to the site structure(dynamic shopping cart basically with some static html pages still around) Probably discussed before so if so pls give me the link Thanks MM
As long as you are still showing in the serps then it appears that you are among others who have lost the pr of their index page but have kept position in the serps and as Shri says have kept pr on internal pages.
This morning I experienced a shock with the exact phenomenon moneymancn mentioned. Internal pages have pr, homepage turned white from a pr6. Rankings remain unchanged. Now the homepage's pr comes back.
In a Chinese seo forum someone witnessed pr0 this today for one the country's biggest portals - Sohu. I'm wondering what G is doing with pr now.