Rupert Swarbrick <rswarbrick@gmail.com> writes:
> <snip>

> More sadly still (and possibly this is me being stupid?), if you realise
> something looks rubbish, the obvious approach of C-k killing the group,
> editing the mbox file and then doing G f again doesn't work, because
> Gnus cleverly caches the emails it seems (when I changed the number of
> emails I was getting the wrong ones!). Is there a way to tell gnus to
> completely forget about the group?

Without restarting gnus, that is.

Rupert