... Layers dialog showing a floating selection. ... To check, look at the Layers dialog (making sure it's set to the image you're working on) and see whether the top layer is called вАЬ Floating Selection вАЭ. ... Look at the Layers dialog, and see whether the layer you are trying to act on is active (i.e., darkened) and has an eye symbol to the left of it. ... If none of the layers there is active, the active drawable might be a channel -- you can look at the Channels tab in the Layers dialog to see. ...