I'm running F8 64 bit and after the last round of updates (they seemed to happen all at once, nothing one day, 250MB the next) I had some odd behaviors with networking and /dev/sr0 permissions. I grep'ed through yum.log to verify there were no recent updates to udev or NetworkManager (or anything else i could guess would be related) and there were not. After rebooting from installing the last round of updates my networking stopped after a few minutes of use. I clicked on the NetworkManager applet and it showed I had two wired connections available for some reason (I only have one). Selecting the other wired connection got things working for a while until it did it again. This time when I clicked on the applet it was showing 3 wired connections. I have since disabled NetworkManager. The other issue that came up was related to k3b complaining about not having permissions to /dev/sr0. Checking the permissions showed owner (root) RW access and group (disk) R access. I poked through the udev rules file for block devices and it seemed to set them all to MODE="0640". I wasn't sure if that was correct for some of the devices so I added a MODE="0660" to just the sr[0-9] line and it seemed to work as I'm in the "disk" group. I'm just not sure if thats the best solution. Anyone else have any similar issues? Thanks, Richard