Ok, forget it, I've just spotted the typo in my sources.list: "dapper-updates universe" instead of "dapper universe"
All now working. Sorry to have troubled you. -- Dependency on libssl0.9.7 stops install on "uptodate" Dapper https://launchpad.net/bugs/52269 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs