Came in after my run today cuz I'm a big mama, but I received a phone call so I answered my EVO. Got some sweat from my face on the screen protector. I wiped the sweat off the phone. Screen froze a little but I hit the power button to put the phone to sleep, the hit the button again. Screen had unfrozen. Then I decided to make a call and one drop of sweat got onto the phone and the motion sensor wouldn't allow me to bring the screen back on after moving the phone away from my face. Wiped the sweat off, then the motion sensor worked again. I know someone on here said their EVO got messed up after answering a phone call while running on the treadmill at the gym. Their sweat jacked up the phone. Good idea to have screen protector and case on your EVO if you like to take the phone to the gym with you. And if you are all sweaty, wipe your hands before touching the phone and DO NOT ALLOW sweat from your face to get onto the screen. Water or sweat on top of the screen protector interferes with touch sensitivity.