Last week I got the fully loaded 2010 MBA 13" (2.13ghz/4gb/256gb). It's just perfect, I have no problems with it. My first Mac, will be my only computer. On a whim, I ran the quick Apple Hardware Test using the included USB install drive (took just a few minutes) and it came up with this: Alert! Apple Hardware Test has detected an error. 4SNS/1/40000001:IDOR-0.040 Any ideas on what that means? Hopefully it's a false positive. I'm running the extended test right now, which will take more than an hour. Will report back. Anyone seeing anything from the hardware test?