When I double click the text to edit it, only a little 'Edit Text' dialog opens, but there are no tools to edit text.
For some reason your Text Editor is behind other windows and is not visible. Window List can be used to bring a window to the front or into view if it is hidden. In Windows, it is also used to restore a window if it has been minimized (to an icon).
From the Window List select Text Editor and click OK
Text Editor gets active and you are able to edit the text.