I had the same "Reset Problem" with my original 500Mhz TiBook. Not sure when it started - maybe 2004 or 2005. Every start after a shutdown first required depressing the Reset button in the back. I didn't find that a major problem because I rarely did a shutdown. When my Firewire port became non-operational in June 2006, I bought a used 500Mhz TiBook and I haven't had the "Reset Problem" with that one. Bob Fowles