On May 3, 9:30*pm, Larry Jaques wrote:
On Mon, 3 May 2010 09:58:56 -0700, "Steve B"
wrote the following:

I have owned a track ball since a 2000 shoulder surgery. *I wouldn't own
anything else, and am amazed at how hard some people find them to use. *They
use no desk space. *Get the wireless.

If they weren't $100, I'd like to try a Logitech Trackman Live!
handheld presentation trackball.

Regular trackballs (marble on top) require your hand and/or arm to be
lifted and moved. The Logitech Trackman Portable/Optical
Trackman/Cordless Trackman Wheel and the Microsoft Ballpoint have the
left-hand ball to be used by the thumb, -preventing- the carpal and
shoulder problems most people experience with mouse use.

Yes, it's amazing that people can't use their thumb (or palm) to move
the ball. I fell right into it and was fully up to speed within the
hour.

--
Courage is the power to let go of the familiar.
* * * * * * * * * * * * * -- Raymond Lindquist

I posted above about this, but it bears repeating. I've been using
trackballs for longer than I can remember. My weapon of choice these
days is the Microsoft Trackball Explorer. You manipulate the ball with
your index & middle fingers, and the buttons & wheel with your thumb.
THere are two other buttons (which I don't use) that you operate with
your ring finger and pinky.This is a right-handed only device.

So, I thought I ought to buy a couple more of them. They're totally
out of production, and going for over $450 on ebay. So, I'm open to
suggestions. I don't really like using the thumb to operate the ball,
as it's way easier to be precise with the fingers. And the big
Kensigntons (of which I have a couple) are too, well, big, requiring
too much hand movement. Any ideas?