Anyone having this issue with Touch Pro?

[apjmd]

My Touch Pro has been cutting off randomly and I have no idea that the phone has been off until I go to "wake it up" and nothing happens. I always have to take the battery out and put it back in. I have had Sprint replace the phone 4 times. I love the look and feel of the phone but it is worthless if I can't run third party software or Bluetooth. Sprint says that my software is probably not compatible with the device. I loaded the bluetooth headset and Epocrates. Recently I started using the beta of myPhone, which I love. If I could keep the phone from shutting off it would be a keeper. Any advice?