the forum module says _bx_forums. How to change?

How do I change the name of the forums to just say forums instead of _bx_forums ?

and all of the spaces are being replaced with a _

That implies there is not a language entry for _bx_forums; that is a language key that gets replace by the word Forum or other text.

Go to your forum, click on manage forum, and recompile the language for the forum.  See if this clears the _bx_forums and replaces it with Forum.

All of you are geniuses! It worked!