Occasionally my EVO will lock up when using the handsfree bluetooth calling feature in my Cadillac CTS. I can't tell whether this is a problem with the phone or Caddy's Bluetooth implementation, but it's only a minor annoyance now (the lockup typically happens if I receive another call while on a call...this has always been a problem in the CTS although it's never locked up my Palm Pre). In any case, I have to wait a minute or so for the phone to "unlock" itself...the screen will be frozen and unresponsive, even though you can still receive calls. Pressing the Power button will bring up the poweroff dialog, but you can't select anything. I was wondering if there was a way to reboot the phone by pressing a combination of hard buttons (volume + power)...otherwise the only other way is to remove the case and pull the battery (not recommended while driving!). Other than that, the Evo has been pretty much flawless, and I'm not missing much about my Pre. Thanks!