Forwarded from: https://launchpad.net/distros/ubuntu/+source/evolution/+bug/45380


Description of the problem:
When the composing a mail window in evolution does not have enough space to display all its toolbar icons a dropdown arrow will appear at the right to let you see the icons that didn't fit. Clicking on this causes the arrow to go into the depressed state, a brief flicker of grey but no missing icons are displayed.

Steps to reproduce:
1. Start evolution .
2. Press Ctrl-Shift-M to get the Compose Message window to appear.
3. Resize the Compose Message window smaller so that not all the icons toolbar will fit horizontally and a dropdown arrow appears at the right of the toolbar.
4. Click the dropdown arrow.

Expected results:
Dropdown arrow to go into a depressed state, icons that could not be fitted into the main toolbar to appear in a vertical list.

Actual results:
Dropdown arrow to goes into a depressed state, there is a brief flicker of grey but no missing icons are displayed. A very small 4px across box appears under the arrow.

Additional information:
Other GNOME applications like gedit do not exhibit this behaviour.

Version information:
evolution 2.6.1-0ubuntu6