Unique Visitor total missing

Support & Bugs
1

http://screencast.com/t/gUL7o2REhfQ

How can I find the sum of visitors during a time range?

2

Maybe this will help

http://piwik.org/faq/how-to/#faq_113

3

[quote=fjohn]
Maybe this will help

http://piwik.org/faq/how-to/#faq_113[/quote]

Great, except now the Unique Visitors says 0…

4

Use the API VisitsSummary.getVisits : http://piwik.org/docs/analytics-api/reference