Dashboard issues: no refresh, no set to read when scrolling

I have rearranged my dashboard, adding feeds and folders in new/extra panels, setting them to show a restricted number of the latest unread stories.
In my “global” settings I have set that when I scroll past a story, it should be set to read.
When I scroll in the dashboard that doesn’t happen.
When stories are read because I clicked on them to read, depending on the setting “show all/unread”, they still show (or not) and are not refreshed with the next 5 (10/15) unread stories.
Clicking on dashboard in the main navigation pain (left) doesn’t refresh the panes and fill them with the latest 5 (10/15) unread stories.