I posted a saved game and steps to recreate in this thread some time ago.
If you had loaded a saved game from within the game, or done a control-N at the start to generate a new map, it's probably the same bug as the one I described.
This sounds about right.
I got it in .51 or .75. Reloading actually made it worse - the text disappeared entirely.
Exiting the game and reloading fixed it.