Hi Dave,
after updating to version 1.4.5 the chart seems no more to work like in version 1.4.0, the columns are splitted in region A and region B. As I said, in version 1.4.0 it worked fine. The directory ../wp-content/cache exists and is writable.
And in my case it's not possible since version 1.4.5 to open the Dashboard Widgets "Post views", "Referrers", "Clicks" and "Search terms".
Is there anything else to configure?
Kind regards
Michael