On my googlepages site http://jayg123.googlepages.com I see a tool bar PR of 5. But on all the PR checking tools so far I still see data centers showing PR4. I am expecting it to move up to a PR5 though so I wonder if a toolbar page rank update is in progress? I guess it would stand to reason that googlepages get updated early on?
Thats probably because of your internet connection, sometimes when internet is slow, the toolbar shows page rank of last site visited instead of current website. It happens more in Firefox.