I'm running Debian Etch and after runing: Code: sudo wget http://wine.budgetdedicated.com/apt/sources.list.d/etch.list -O /etc/apt/sources.list.d/winehq.list just like it says here (http://winehq.org/site/download-deb) and then runing: Code: sudo apt-get update It says: [...] Hit http://ftp.ro.debian.org etch/main Sources Hit http://ftp.ro.debian.org etch/non-free Sources Hit http://ftp.ro.debian.org etch/contrib Sources Fetched 61.4kB in 0s (71.5kB/s) Reading package lists... Done W: GPG error: http://wine.budgetdedicated.com etch Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 58403026387EE263 W: You may want to run apt-get update to correct these problems What public key ?? [Question]