Kimberly_Nicole said to do here on the forums:
Do you have an antivirus program running or another program you downloaded that is having that to show up? If so, you will just go into that program and go to Settings-Remote Management-Lost Message.
If all else fails, print a sheet of paper on your computer that has what you want to be on your home screen. Take a closeup picture of it with your phone and then set that photo as your homescreen wallpaper.
There used to be a "banner" section in Settings - Display. However, for some odd reason, it isn't there any more. If you want your name on the home page, about the only way I see you can do it is to get a scratchpad apps and go that route.
Mortb, I believe you are mistaken. there never has been a Banner setting within settings that allowed you to do that on the X.
Go into the Market and type "banner" into search. there is a widget in the market called "Banner" that allows you to put a banner on your home screen. This is a widget so you would have to add it to each screen. Never used it myself. But, may work for you.
Another option is, if you have a photo editor on your computer, then you can create a "wallpaper" using the text in the editor and sending it to your phone and then setting it as the wallpaper.
Are you wanting something like this?
It is the antivirus program. I have it and have my name on the front screen.
Open the antivirus program and go into the settings. You will see an option for something like "text after banner" and that is where you put it.