TBC unexpected error when changing text

So this has happened to me several times. I create labels for points and the labels are overlapping. The method I use to correct this is to select everything and then in the properties dropdown menu I select point labels. At this point, I select the text box and change the height. Then I get this error, unfortunately, it will not allow me to save and I have to exit the program using ctrl-alt-del. Anyone else have this happen…better way to accomplish what I am trying to do?? Thanks

I had the same problem before. The error was coming up when I was working with lines and corridors. It’s somehow regarding the graphic card. I have updated the graphic card driver and looks like is working now.