This same exact thing happens to me all the time too with my IIIe. sometimes it does not want to turn on as well. I have sent the palm back twice already. it seems the problem, i believe stems from where the powerbutton lies. it becomes easy when you carry it in your pocket or some of the many carrying cases for the power to be pushed in at an angle, and then the connection goes bad. you can see for youself how easy it is to jiggle the power button so that it seems loose. Therefore it is a hardware problem which should be covered under the warranty, if you are out of warranty then it seems your only option is to pay, b/c resetting it won't help