Me and my girlfriend both have the Spica (2.1). However, her phone seems to unlock itself when she is making calls. The dialer is drawn and she presses the dial with her face resulting in a huge amount of "beeps!!" in my ear while talking to her. My phone doesn't seem to behave that way. Locking with "On/Off" button doesn't always work, unforunately. Is there any app or some kind of solution for this?