Control: close -1 When did you try doing all of this? I found out what the real problem was - SLES 11 SP3 and lower don't support RSA keys with a key size higher than 1024 bits for RPM signatures. Our main signing key has a key size of 2048 bits. Thus, I've changed all SLE 11 repositories to use the 1024-bit EPEL5-compatibility key (both for signing repository metadata and the packages themselves) in the packages and the corresponding archive repositories yesterday evening. After that, all packages installed successfully while trying to install x2goserver in my SLES 11 SP3 VM. Please run "zypper clean" and "zypper refresh" to delete cached files and update the local repository metadata on your machine. Afterwards, installing x2goserver should work fine. Closing up the bug report for now. Though, please give me feedback whether it worked now or is still failing. Mihai