This is usually caused by "Netbook Mode" or "Small Textures" being enabled. Go to Options > Graphics and disable these, then restart the game.
Since your query is a bit brief, I've broken down the most common things people look for regarding "text" in . 1. In-Game Communication dont strave tolgether
If you accidentally hit a key and see numbers/text in the top-left or center of the screen, try pressing Backspace or Ctrl + L to toggle it off. This is usually caused by "Netbook Mode" or