Hi there, today my desire for the first time turned off by itself. it happened while the mobile internet was turned on and i was trying to load a youtube video. the phone just turned off. i turned it back on, and it turned off again. i managed to turn off the mobile internet, and the problem stopped. i tried watching the same youtube vid via wireless and the problem never happened. i then tried using google navigator with the mobile internet on and phone turned off once again. thing is i have had the phone for 2-3 months and this has never happened before. this morning my phone updated 3 apps, "quick settings", "advance task killer" and "google maps". could these updates be the source of the problem? o2 said to try the sim in another phone and rule out a network fault. still need to get round to doing that. anybody had similar problems?