I accidentally clicked the do not show again button on the unable to locate files menu. How do I undo that?
Go to Tools > Options > System Options. Then something like "Dismissed messages". (I'm at home today and don't have SW here to check the exact wording. Maybe someone else will see this and give the exact wording, or better yet, a screenshot.) That should show the list of all messages you've dismissed so you can select the one you want back.
As Glen said it in the Options.
Down at the bottom of the system option
"Messages / Errors / Warning"
Just tick the message you wish to show again.
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