On Mon, Jun 29, 2020 at 09:37:37PM +0200, joachim heintz wrote: > perhaps worth to try this: > gpg --keyserver keyring.debian.org --recv-keys 6669378035F4918C > That sounds plausible...(if a bit cryptic!) I was just goind to remark that I see a 'trusted.gpg' in my /etc/apt directory. It has a later date than other files so it must have been updated at some point. Do you have such a file, Richard? -- Pete -- Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here