I have to admit the problem I was having with AutoCAD text was not actually an AutoCAD problem. The program I use for the map layout is ArcMap. I just import the customer's DWG file and it lays on top of our image. All the text except for one area was fine. Just three lines of text. I opened AutoCAD and copy and pasted some other text as a test and the new text shows up. OK, cool. I then edit the text to say what the client wants and it vanishes! The text deals with Stressed Vegetation. I can type in a string of profanity about how stressed I am about invisible text and it shows up. The text the customer wants just vanishes.
I finally gave up and put the text in with the ArcMap but now I have to have notes to myself for the next time we update it that that line of text is not part of the customer file.
Computers are FUN!