The bounce rate shown in brackets after the 'Bounce count' is wrong in the 'WP-Piwik – last30' dashboard widget on my website. It seems to be taking the 1 day bounce rate instead for the 30 day rate. In any case, it does not correspond to either a) bounce count/visitors, or b) bounce count/unique visitors.
Thanks for this very useful plugin. Help with this issue would be greatly appreciated.