PDA touch-screen failure at 8000 feet?

[John Clonts]

I use my Sony Clie TJ37 a lot, but rarely while flying. The other day I tried to use it at 8000 feet and the
touch screen was very unresponsive. I could *sometimes* get a click to register but I had to press very hard
or "whack" it with the stylus. Back on the ground it works fine. Anybody have any similar experience, either
GA or airline (cabin alt== 8000 feet)?

I have heard of bad effects of altitude on hard disks, but it's hard to imagine such an effect on a touch
screen!
--
Cheers,
John Clonts
Temple, Texas
N7NZ

[Newps]

John Clonts wrote:

> I use my Sony Clie TJ37 a lot, but rarely while flying. The other day I tried to use it at 8000 feet and the
> touch screen was very unresponsive. I could *sometimes* get a click to register but I had to press very hard
> or "whack" it with the stylus. Back on the ground it works fine. Anybody have any similar experience, either
> GA or airline (cabin alt== 8000 feet)?

I have a Dell Axim X50v, never had a problem on airline flights. I'll
have to climb high in the Bo and see if that does anything.

[John T]

"John Clonts" > wrote in message

>
> I use my Sony Clie TJ37 a lot, but rarely while flying. The other
> day I tried to use it at 8000 feet and the touch screen was very
> unresponsive. I could *sometimes* get a click to register but I had
> to press very hard or "whack" it with the stylus. Back on the ground
> it works fine. Anybody have any similar experience, either GA or
> airline (cabin alt== 8000 feet)?

No, my current iPAQ hx4700 and older 3955 screens work fine at 9000' (the
highest I've used them in a plane).

--
John T
http://tknowlogy.com/TknoFlyer
http://www.pocketgear.com/products_search.asp?developerid=4415
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____________________

[Paul kgyy]

Had my Ipaq 5550 up to 13.5 a while back, no problem.

[rod]

Probably tiny (invisible) air bubbles between layers of your screen. As you
decrease ambient air pressure these bubbles expand and push the layers
farther apart. That's why you have to press harder to make an impression.

Rod