Try adding deb http://nl.archive.ubuntu.com/ubuntu/ dapper main restricted universe multiverse deb-src http://nl.archive.ubuntu.com/ubuntu/ dapper main restricted universe multiverse
instead of deb http://nl.archive.ubuntu.com/ubuntu/ dapper main restricted deb-src http://nl.archive.ubuntu.com/ubuntu/ dapper main restricted -- libsdl1.2-dev has trouble installing (dapper) because of libarts-dev dependancy https://launchpad.net/bugs/56939 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
