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.