I played FO3 for a few months last year, and completed the main quest, side quests and the 5 DLCs. I decided to start a new character.
I'm now experiencing a minor glitch with the Pipboy: sometimes it's further down the screen than normal, but you can still see everything, but it has also appeared much further up the screen, with some of the information off screen! After a while, it returns to normal (reloading a saved game, or fast travelling, doesn't make a difference. Even quitting and reloading didn't cure it).
I don't know if this is a known glitch (I did a quick search but didn't find anything), but it never happened before. There was a small (about 3MB) update that I let it load when I first began it again. I thought that was a bit strange, as I downloaded all updates last year.