It appears that when you create a formula field, the field name cannot contain spaces.  Hence, "Full Name" turns into "Full_Name".  This looks bad especially when a regular field name is displayed without underscores (e.g. "First Name").  I can understand if there is a requirement that the database field name cannot have spaces but then there should be a display name that can have spaces.

It would be great is this could be changed.

Thanks,

Jeff