When I had 2.2 Froyo, my phone worked GREAT! After The Gingerbread update to 2.3.3, instead of just pressing the on/off/sleep button once to turn the phone on, if I press it once and let go, nothing happens. If I press it again and let it go, it starts up, but without the HTC and AT&T Splash Screens. The only way for me to get it to start like it used to is, the first time, to hold the power button in for a couple of seconds, and then let go. I did every reset you can imagine, and even sent the phone into HTC. They wiped it and re-loaded it and send it back to me. It still does the same thing. Does anyone else experience this?