Sure I read a few months after the event that they'd just been using the same route for several days in a row and it was a mobile SAM moved under the flight path specifically to catch them should they be dumb enough to continue using that route.
As for Windows, might have been true of early version but not anymore - above quoted computer consultant can't be a very good one, or maybe he can figure out why I've had XP running 24/7 for up to 18 months uninterrupted, and the last time I had to reboot was only to put in an extra hard drive? As always, tools/bad workmen/blame...