I've been going through the PS tutorials and I find that when I select the Crop tool, the Options bar does not show the check mark to complete the action. There's a tiny little sliver that if I hover over it just right, I can select it. The tutorial shows a real check mark. I can't figure out how to expand the tool bar. Any ideas?
It does look like the check mark disappeared because the options bar became detached from the window. Michael’s solution should work, but you can also simply re-dock the options bar by dragging it against the top of the document area, and releasing the mouse button when the blue line appears. When it’s docked, it takes up the entire length and the check mark is visible.
But you should know that you don’t even need that check mark button. You can press Enter or Return as a keyboard shortcut for the check mark commit button, and you can press Esc as a shortcut for the cancel button. Because I like using the keyboard for commit/cancel, I don’t have to move the mouse up to the check mark.