I'm wondering if anyone has any information on the network boot Apple hardware test done in the stores - how it might compare to the OS9-looking hardware test that comes with the machines, or would have been used over USB if an Apple tech were working on it. The network version looks radically different from either the CD that shipped with my machine, or the ASD CD. (Why? I'm having some intermittent problems with my MBP 3,1. I brought it into the store, but the tech only looked at my logs, and did not run an Apple hardware test. I agree with the tech, in that the hardware test can be less than helpful, but it still would have put me at ease to see it pass. The test caught issues at three different times in the past, so I don't think it is totally worthless. I've now noticed that when my machine freezes, no helpful messages are saved. So... I ran the hardware test that came with my mac (looks like OS 9!), then the Apple Service Diagnostics (also looks like OS 9).) However, I'm wondering if there is a newer/better test out there. I 'ask' because the last time I was in for a repair, the tech network-booted my machine into the testing environment, and it was totally revised from what I have access to locally (ASD).