bug? (changing _names_ of reference types)

Hello,

This question concerns a change from endnote X to endnote X1.  In
Endnote X it was possible to change the name of a reference type (edit >
preferences... > reference types) by clicking on the first field named
"Generic".  I used this to translate reference types into French and to
hide unneeded reference types by adding a period before the title.  

In Endnote X1, I can no longer edit this field, despite the fact that
the same message appears ("To hide an unwanted reference type, add a
period before the name  (e.g., ".Map") in the column heading below.").
This leads me to believe this is just a bug that may be ironed out in an
upcoming patch?

I have searched the archive and have not found this issue / bug
mentioned.  For the time being, of course, it is possible to work around
the problem by searching and replacing in the XML file with a text
editor, but I wondered if I am overlooking something obvious (like a
preference somewhere that locks write access to the contents of the
"generic" field).

Any help would be much appreciated.

sas