In normal use the large trackpad on the MacBook Air works fine.
However, I have found that when the computer is connected to a
videoprojector there is some sort of electrical interference that
makes it very difficult to place the cursor exactly. Instead of
moving smoothly as I move my finger it jerks around almost
uncontrollably. Although this doesn't matter during a presentation,
because I don't usually use the trackpad during a presentation, it
does matter at the start. I have found an easy solution, however,
that seem to work perfectly on my computer. If I touch the computer
with my left hand at the left of the trackpad, while manipulating the
trackpad with the right hand (a left-handed person would doubtless do
it the otrher way around), the trackpad becomes perfectly stable and
as I don't need my left hand for anything else while I'm using the
trackpad that seems, at least for the moment to be the complete
solution.
--
Athel Cornish-Bowden
acornish@ibsm.cnrs-mrs.fr
------------------------------------
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