Well, after 32 days without a restart on my super-trusty Rev. A LunchTrayDeluxe (17-inch PBG4 1 GHz), I bit the bullet and did the recent security update (iPhoto was crashing when emailing pics and I wanted to see if restarting would fix the problem). Anyway, about 10 seconds (with the spinning startup disc-y thing) into the 10.4.1 boot process after the update, I got a kernel panic. Three straight restarts. Sooo, I archived and installed 10.4 and did all the software update upgrades (including the Security Update) - lost about 40 minutes, not too shabby. Is there a log in my previous system that might give some insight into what happened? I'm running a hack or two (iScroll2, comes to mind, but I thought those drivers loaded after the "About this Mac" window appeared). I didn't want to futz last night, so I didn't go into single user mode. Do I have any options? Thanks, Peter "I felt something, a disturbance in the network, as if a million Mac zealots cried out in horror and were suddenly silenced." -- One Slashdot reader comments on Apple's switch to Intel. Peter Krug pkrug at mac.com