M-x report-emacs-bugs RET wrote:
> Please describe exactly what actions triggered the bug
> and the precise symptoms of the bug:

With current Emacs CVS trunk, started with -Q, I don't get all tool
bar buttons, but only the icons corresponding to `cut' `copy',
`customize' and `help'.  Additionally *all* icon but `copy' display
the tool tip `Pop up the Help menu' and `<f1> k' shows:

,----[ <f1> k ... ]
| <tool-bar> <help> runs the command #[nil "\301^H!\207"
| [menu-bar-help-menu popup-menu] 2 nil nil], which is an interactive
| compiled Lisp function.
| 
| (anonymous)
| 
| Not documented.
`----

Here's a screen shot: