I've got an intel macbook, probably 2008. I was using mail earlier this evening, then it started complaining about corrupted mailbox. (I was running OS 10.6 software update in the background, downloading a new printer driver I think). I quit mail, try to open, and mail won't open, with some bizarre error. I figure, time to reboot. Immediately after the startup chimes, I got a "You need to restart your computer" error screen. Rebooted several times, same thing. Zapped PRAM, no dice. Held down 'D' key while powering up for hardware diagnosis debug mode... and I got a black screen with: Code: TRAP 00000006 ========== EXCEPTION ========== TR=0028 cr0=000000013, cr2=00000000, cr3=00000000 GDT limit=03ff base=00017000 idt limit=07ff base=00017400 CS:eip=0008:00007B57 ss:esp=0010:00061fe0 errcode=0000 flags=00010006 NoCy NoZr IntDis Down TrapDis eax=00001104 ebx=004013b1 ecx=00001618 edx=534d0040 ds=0010 es=0010 edi=0047164f esi=000041f4ab ebp=00061ff0 cr0=00000013 fs=0030 gs=0000 What in the world does this mean? I pretty much get this all the time now... sometimes the reboot just hangs with the Apple logo, but usually I see this screen, even though I am not holding down the 'D' key anymore. I also tried booting from my OS install CD... initially it began to boot, but wasn't long before I got the same error again. I am thinking some sort of catastrophic hardware error. Any insight? Could it be bad RAM?