I recently loaded Dialer One, and for a while, when I pressed the Phone 'button' at the bottom of the standard HTC screen it offered me either the stock application, or Dialer One. Stupidly, at some point, I selected the 'use this as default' before selecting an app. Now I no longer get that choice. There must be somewhere that I can select the dialer to use as the one that is called when I press the phone button, but I cannot find where. Can someone tell me, please?