Laurie, the gear
icon is in the bottom right of the decodes window. But my decodes
window is reduced
That image is not the Decodes window, it is the
Callsigns window. Two different underlying technologies. The
reduced size Callsigns window is easily fixed., make the window
active (simply click anywhere on the window) and use the F2 hotkey
(the standard across all the new 2.50.x introduced windows) to
bring up the Options popup for the Callsigns window then untick
the "Size locked" & "Position locked" checkboxes. That will
allow you to resize and reposition the window.