After updating to 2.2 on tmobile when it eventually came to us how ever many weeks ago, all seemed fine untill the phone rebooted and turned back on in airplane mode - try as I did, I couldnt turn it off, none off the different ways to do it seemed to work (home screen widget, long hold on on/off button, settings-wireless and networks-airplane mode off)- I eventually, having called t-mobile who where almost as helpfull as a bag of jelly had to factory reset which did seem to sort it out... The reason I am writting now is because after reading the threads about how often people turn their phones off, I did just this. Low and behold the ruddy airplance mode was on when phone turned back on and same again, couldnt turn it off. I turned the phone on and off for about 10 times and eventually it seemed to work although I couldnt tell you why in that particular instance. Now this isnt a major issue as I do actually keep the phone turned on for the most, but I am obviously tyring to foresee possible future problems..ie battery running out, having to reboot because or a dodgy app etc Id like to know if anyone has any ideas of why this happens and anything I can do to avoid this in future. I did read an old thread on here about airplane mode sticking because of sim card age but not sure why this would make a difference, it was fine with 2.1 and only started happening after the froyo update.