Hi, recently, these weird letters or symbols are appearing around my dimensions, I have not done any changes on SW configs or anything else. Within the same part, they sometimes show up, then they don't. Or the sketch is fine and suddenly I go into another part and when I come back and add a new dimension, they appear. Any thoughts? Is there something I might have changed by mistake?? And more recently, they show in different colors and today, weird vertical lines appeared!! Thanks for any help, this is driving me nuts and terribly slows down the display also.