When I try to trash all items from K2 item list, I get a popup that says "Please first make a selection from the list".

To select the items, I'm using the single check box at the top of the item column. If I select multiple items using the check boxes listed next to each item, then the trash function works. It's only when I use the check box at the top that the trash fails.

I tried this in both Chrome and Firefox 7, neither works.