Today I decided to install all the latest updates (including the -06 kernel). The "yum update" seems to have run just fine (no errors), but when I rebooted the system it just sits there with the word "GRUB" in the upper left hand corner. I booted from the CentOS 4.5 install CD into rescue mode, did a "chroot /mnt/sysimage" and reinstalled grub and the latest kernel, but it still gets stuck in the same place. It's not that I can't boot the new kernel; I can't even get to the grub screen! Any ideas? I am totally stuck at the moment... Alfred