using the charting package included with Zorro, when trying to save a chart using "save as", whether keying ctrl-S, clicking "save as" in the file menu, or clicking the saveas icon (second from the left, multiple floppydisks image), the error message "an unknown error occured..." displays and the chart is not saved to file.

Whereas when clicking the icon 3 more places to the right - the single floppy disk icon - the chart is saved to file as expected.

using Zorro version 1.44.1
just curious what is the reason?

note that having followed the link under the help/about menu bar, it appears development has stopped for the ImageViewer project.