Can't edit description of mailing list archive

[kh-3]

Hi, I just set up this mailing list archive

        http://n3.nabble.com/Clang-Developers-f42468.html

When I try to edit the description, it says,
 
        You can't create a new sub-forum under a mailing list archive

and the Save Changes button doesn't save the changes.

[Hugo <Nabble>]

Please try again. It happened because you selected "Make this archive read-only". We will fix this bug in the next release. If you want to make that archive read-only, please click on "Options > Users > Who can view & post?" and select "Members can participate". Then make sure you are the only member in that forum (Options > Users > Who are members?)

[kh-3]

Thanks!