I installed Leopard a few months ago, had Tiger before that. Unfortunately a month or so ago, I started getting the BSOD. It seems to have to do with leaving the machine idle for more than a couple of minutes. This theory was consistent until today, when after using the computer most of the day and having some inactivity, no BSOD. New user, me, and blam! BSOD. Shut off computer. Restart. Didn’t even make it to the login screen. Computer froze, new situation. Extensive message that appeared in white text, black background for the text and any spaces within text, but not in front of indented text. The gist seemed to do with the kernel. I did have a problem with an install of Dave that was apparently a previous version, and in trying to eradicate that-I was getting an information prompt about a kernel, I wonder if I deleted a file in error. However, outside of reinstalling OS 10.5 – or waiting until Snow Leopard is released – I can’t locate a list of kernel files to prove/disprove my theory, nor can I see the possibility of installing just any missing files. Meanwhile, my copy of 10.4 is AWOL and may take some time to find. Any ideas?