I've noticed that if someone sends me a cleartext PGP signed (ie
non-MIME) message from Mozilla Thunderbird, Gnus does not recognise it
as being signed.

Has anyone else seen this?  Or know what the problem is?

Apparently, these messages can still be verified using Mailcrypt, but
not with PGG.

-- 
|---<Steve Youngs>---------------<GnuPG KeyID: A94B3003>---|
|              Ashes to ashes, dust to dust.               |
|      The proof of the pudding, is under the crust.       |
|------------------------------<sryoungs@bigpond.net.au>---|