[Plugin: WordPress.com Stats] [Plugin: WordPress.com Stats] Counting each hit twice?

I installed the plugin yesterday and it seems to be counting each page view twice. E.g. There are no odd numbers on the stats report pages, and there are two smileys at the foot of each page (for non logged in users).
Otherwise a great plugin!
Any help appreciated, Roger.

http://www.thehypervisor.com

http://ww.wp.xz.cn/extend/plugins/stats/