[grammatim[_2_]]

In earlier versions of Word, when your document was narrower than
usual (for instance with documents open side by side for comparison),
and icons that no longer fit on the toolbars were in the down-arrow at
the right, when you used one of those, it replaced another icon in the
visible part of the toolbar.

But with the QAT in 2007, such buttons simply stay inside the runover
bin, no matter how often you use them.

Isn't that odd?