persistent problem
I have been fighting this on my wife's iMac (Intel Core 2 Duo, OS X 10.6.7) for about the past year, and nothing seems to help. I maxed out the RAM (from 2 GB to 4 GB) and it seemed to help for a while, but it's back. I've tried numerous hardware tests (including TechTools Pro 5 and Apple's), repaired permissions, safe boot, reset PRAM. I've used OnyX to varying degrees of success (clearing caches, checking the drive for errors, etc), but the relief is always temporary and sometimes so short that it seems that my efforts are futile.
This morning, I even got the SBBOD after a reboot, at the login screen (when I clicked on a user).
Any suggestions?