Hi Jim, hi folks.
Try this procedure:
1 - Make sure that everything is visible. Show all layers and unhide all.
2 - Orbit, pan and zoom to get all of your model inside the model window.
3 - Select all (CTRL-A). This will select all the model and, normally, the invisible text object.
4 - Press and hold the SHIFT key down to allows adding/subtracting from the selection.
5 - Do a window select of all the model. This will unselect the model but shall keep that elusive text object as selected.
6 - Press the Delete key.
If you have the Model info --> Statistic window open while doing this, you shall see if the number of text objetcs decrease by one.
Alternatively, you may try to select the model, hopefully without the elusive text object, copy it and paste it in another empty file opened into another instance of SU. If it works, delete the old file and rename the new one.
Just ideas.