I've tried clicking once and clicking twice and right clicking and nothing works. How in the world do you get a Photoshop annotation to open so you can see the contents?

Dry double clicking on the note icon with the move tool.

Double-click should work. Also, View > Show > Annotations.

Those are the first things I tried. They didn't work, but simply changed colors from yellow to gray, hence, my question in this forum. Thanks anyway.

Perhaps the note is outside the canvas. Try zooming out to see if that's the case.

Bingo! Thanks Doug. That's exactly what it was. ;o)