Weird Lenovo Thinkpad keyboard problem

I've got a new (month-old) Lenovo ThinkPad 3000 N100. Love everything
about it, except: twice now the keyboard has malfunctioned in a very
weird way. Symptoms:

1) the Windows key gets no response
2) Ordinary keyboard shortcuts in different applications I was using
(i.e., ALT+ some other key) ceased working
3) When I hit ALT+TAB to switch tasks, it scrolled backwards through
the tasks (i.e., left to right), rather than right to left
4) Something very strange with "extend selection": if anything on
the screen was selected and I moved the pointing device anywhere, it
selected everything in turn -- as if I were holding down the shift key,
but I wasn't.

The only way I could stop the machine from doing all these weird things
is turn it off and boot up again. I spent half an hour at Lenovo's
site, jumping through the huge number of hoops required to report a
problem. Their response was to dispatch a box today for me to send the
machine back to them. That is way overkill for me: I can't even
reproduce the problem, so I'm not confident that they'll be able
to, and by the time I got the machine back from them I would be losing
the cost of it several times over in lost production. So I wonder: what
makes this happen? Is it some weird combination of keystrokes that
makes the machine go into this mode? What will undo it? Hitting the
escape key, which is my instinct, has no effect whatever.

Many thanks,

OKH

.

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