Hi, I have an admittedly strange concern and may be looking a gift horse in the mouth. I finally picked up a new 13" Air (256 i5 -- Samsung SSD, in case anyone asks). I have read various reports on the fan noise. I have obviously setup my computer, watched videos, downloaded apps, and installed Windows 7 and Microsoft office via Parallels and a Superdrive. Not once during any of this have the fans even made the slightest bit of noise. Is this unusual? The top right corner of the keyboard is warm sometimes, but not hot. Thanks!