I just got my BTO 12" iBook (60g HD and BT) that I ordered from Apple's online store. It was randomly freezing quite a bit. I tried to re-install the OS, but it even froze up during that. So I popped in the hardware test CD and while testing the RAM the testing app puked, reportd "Invalid memory access" and dumped me into Open Firmware. I tried the same thing with the 128mb RAM module removed, same problem. So it seems to definitely be the RAM on the motherboard. I'm taking it to an Apple Store today. I'm wondering how flexible they can be. The most awesome thing I can think of would be to take a new 12" iBook, swap out the hard drive and my internal bluetooth module and send me on my way. But do they even have the authority to do that?