I've just installed 4.0_rc1 to evaluate and compare with FC3 for a local project. The installation and initial usage of the two distros is almost identical. up2date and yum work well on either. The one problem I have is with sound. CentOS has loaded snd_intel8x0 and all the usual suspects, but the mixers (GNOME volume controls, etc., do not work because there is no /dev/xxx for the mixer device. FC3 did not have this problem, and sound worked AOK, or at least as good as it gets for my miserable builtin card. I might note that I had a similar problem on gentoo (which also uses udev), and I have to preload some of the alsa modules or I get the same results. Does anyone have experience with this on CentOS? I haven't done a comparison of the alias files, etc., between CentOS and FC3. Is there a way to preload modules on CentOS prior to udev/hotplug action? TIA, -- Collins