Hi Troy and Connie, I have prepared packages which you may want to put into SL51, either in the main tree or in conrib. For the main repo I would suggest the packages in http://linux.web.psi.ch/dist/scientific/51/beta/sl/ 915resolution-0.5.3-4.slp5.src.rpm ipw3945-1.2.0-2.slp5.src.rpm : fix path to module dir ipw3945-firmware-1.14.2-1.slp5.src.rpm : update to 1.14 iwlwifi-4965-ucode-4.44.17-5.slp5.src.rpm : needed for iwl4965.ko madwifi-0.9.3.3-12.slp5.src.rpm : update to latest version 0.9.3.3 For contrib I have: http://linux.web.psi.ch/dist/scientific/51/beta/contrib/ ati : ATI driver, needs dkms aufs : another unionfs, used by SL5 LiveCD dkms : Dynamic Kernel Module Support firewire : firewire support gspcav1 : Support for webcams ntfs-3g : NTFS w/r support, latest version nvidia : NVIDIA driver, needs dkms xfs : took SRPM from centos extra, rewrote spec file, not tested much See also the README files. Concerning nvidia and ati driver. They use dkms. Either you like dkms or not. However, it seems to work. I decided to use it at PSI and it's working so far. You once asked for numpy and scipy. I have it in SLP5 at PSI. But I had to replace/update lapack, blas in SL5. Would you like to have a look into the SRPMs, you still find them in http://linux.web.psi.ch/dist/scientific/50/psi/current/ Cheers, Urs