Has anyone else had this problem with their HTC Desire? My phone will keep cutting off in the middle of calls for no reason. First time I thought it might be my cheek or something pressing against the "end call" button whilst talking, but after this happening about ten times since I've had the phone in two weeks, I'm pretty sure theres something wrong with my phone. That or whoevers calling me has problems with their phone :\ At one point the sound just cut off mid-call andalthough I could hear the person on the other end they couldnt hear me... I don't know whether this is a HTC Desire problem noted before or it might just be my handset.. I went to an Orange store who said maybe the sensor at the top of the phone was not picking up on my "being there" by me holding it badly or something but i have no clue. Any ideas?