> Pull the RAM, run DiskWarrior, and try your computer for a week or so. I've tried DW few weeks ago and there were basically no errors (1 icon flag). It was ~5 months I wasn't running it. > Anyway, AHT passing your memory means jack squat - partly because a > software test can't really do a good job, and partly because it seems > like you might have a heat-related issue where the memory is fine > until it gets to a certain temperature, or other intermittent > conditions are satisfied. yes, I know. but that's the only tool I have... I guess the best thing to do is to wait and see if it happens again. Silvo Silvo Conticello Albook 17" 1.5GHz/1.5Gb RAM/80Gb HD/OS10.3.8 iMac 1GHz/500Mb Ram/80Gb HD/OS10.3.8/17" display Cambridge UK