I just used Bluehost to install WP. Somewhere along the way I used my first name as my username. I had not noticed that Bluehost had assigned me a username close to my given name but not exactly the same. It appears to have taken my name at the dashboard but not on the cPanel. This is causing various problems. The most obvious one is a line of code showing above some of the pages. My profile says that the username cannot be changed. There appears no way to change it on the cPanel either.