I've had this problem for quite some time, it's still very usable the vast majority of the time but I've notice that in two places I frequent with low-no reception that my phone tends to freeze, or seemingly turn off. When it "turns off" (goes comatose) I either have to remove the battery, or hold the power button until it hard resets to continue using my phone. Same applies to when it freezes. I noticed a few threads in other websites when I was first concerned with the problem, an decided not to worry to much because of the 2.2 upgrade that was supposed to come time and time again... but seeming as we will not be getting that until mid-December now (assuming they don't push it back yet again) I'm looking for a fix. Any ideas? Getting pretty desperate.