I have put up Release Candidate 2.5 for x86_64. Changes include recent errata , kernel, Helixplayer and xloadimage. We expect to release SL 4.0 for x86_64 tomorrow April 21, 2005. ftp://ftp.scientificlinux.org/linux/scientific/40/x86_64 ftp://ftp.scientificlinux.org/linux/scientific/40/iso/x86_64 -Connie Sieh