I'm just taking a guess. The drawing in which you are bringing the table in may not have the default text style setup as desired (your custom .dtl file was not applied). But for the tables saved in the server, instead of leaving the comment cells empty, add just a blank space, of course after setting up the desired text style. This way the cell will hold that text style irrespective of the text settings in the drawing. And yes, you will have to hit backspace every time you are adding a comment. Hope this helps.