Open Flash Chart calls save_image() without the div id. The result is that when right clicking on a chart to "Save image locally", only one chart (e.g., the last one generated on the page) can be saved.
The current workaround is to use the "Export as image" button in the chart's footer.
this may be an undocumented feature. test it -- main.as appears to pass the id in the callback
fixes #1020 - only the last chart added to the dashboard can be saved locally (using the right-click pop-up menu to "Save Image Locally"); the footer icon link worked properly
fixes #947 - truncated translation string in Flash widget when "no data"; this is now styled consistently with "no data" for tables and tag clouds