I installed JetPack, and get this error on the stats page -
You are not a member of this site.
If you have just installed the WordPress.com Stats plugin, this error probably appeared because the API key entered in the plugin belongs to a different WordPress.com user account.
The owner of the API key must visit this site's stats page to grant access.
Yes, I removed the WP stats plugin after I installed JP. I 'connected to WP" as JP requires.
I tried disabling all other Plugins to see if there was a conflict, that had no impact. I checked SQL setup, both run PHP 5.0
I think this covers all details.