Could you try installing in expert mode and explicitly selecting the 486 kernel.I have successfully loaded an earlier build of lenny on the same hardware.Checking Google, I found a long discussion of the problem at:http://www.gossamer-threads.com/lists/linux/kernel/949548 This suggests that the lenny beta 2 kernel may not work with my processor. Is this something that needs to be fixed by kernel team? Or, is there something I need to do to get around it