On Thu, Dec 16 2010, nyc4bos@aol.com wrote:

> Yes, it looks like that's it.
>
> I now think this started occurring because it looks like there was
> a recent change to how `gnus-outgoing-message-group' works.
>
> I set a default to `gnus-outgoing-message-group' and used a
> a function to change its value depending on which newsgroup
> I'm in.
>
> I looked at the documentation and it said that this is obsoleted
> and to use 'gnus-message-archive-group'.
>
> However, it appears that 'gnus-message-archive-group' cannot
> use the function I was using as a drop-in-replacement:
>
> gnus-inews-insert-gcc: Wrong type argument: stringp,
> (gnus-choose-archive)
>
> Previous to the change in 'gnus-outgoing-message-group', the
> function caused the archive to go to a nnfolder for NNTP post.

Could you M-x toggle-debug-on-error and send me the backtrace when the
error happens?

-- 
Julien Danjou
❱ http://julien.danjou.info