Hello, I want to install kmldonkey via apt-get to ftp.gwdg.de, but I get an error as follows: root@linux:/etc/apt# apt-get install kmldonkey Reading Package Lists... Done Building Dependency Tree... Done The following packages will be upgraded kmldonkey 1 upgraded, 0 newly installed, 0 removed and 93 not upgraded. Need to get 3579kB of archives. After unpacking 8001kB of additional disk space will be used. Get:1 ftp://ftp.gwdg.de SuSE/9.1-i386/suser-scorot kmldonkey 0.10pre3-2 [3579kB] Fetched 3579kB in 47s (76.0kB/s) Checking GPG signatures... Unsigned /var/cache/apt/archives/kmldonkey_0.10pre3-2_i586.rpm: sha1 md5 OK E: Error(s) while checking package signatures: 1 unsigned package(s) 0 package(s) with unknown signatures 0 package(s) with illegal/corrupted signatures Do you have any ideas how to handle such problem? Thanks.