F17 install from LiveCD not booting after update to 3.6

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http://forums.fedoraforum.org – Hello, I've installed the x64 gnome live cd on my machine (3 year old dell desktop workstation) and for few howrs all worked fine. Then I decided to update to the latest packages with"yum update" and after the update was successful done I continued to use my machine for few more hours. After a while I needed to reboot the machine and unfortunately it failed to load the new 3.6 kernel. I got stuck at a blank screen after I selected the 3.6 kernel in the the grub2 menu. I can still boot the older 3.3 kernel. I did try to look for any symptoms in the /var/log/messages but I didn (HowTos)