I have a treo 700wx that is several years old now, and I have been living with this problem for most of the time I have had it and I am getting tired of it. What the phone is doing is shutting off the back light every minute on the minute even when I am actively using the touch screen, key pad or anything. To get the back light back on I have to use the keyboard shortcut to get to the control screen, then bring the backlight level back up to where I can see the screen. After that if I reset the phone it will operate normally until I turn it off, and the next time I turn it on it starts doing it all over again. I currently have the back light settings set to not turn off, and the power management to not turn the phone off from inactivity, and still the problem presists. I have done a hard reset, and the problem comes back after the phone has been turned on and off about 4 or 5 times. Does anyone know what is going on with my phone and can anyone help me?