Hi all, I'm a newbie to this forum, though not to iPhones. Have had the original 2G and then the 3GS. I was very lucky last week and managed to get a 16gb iPhone 4 even though I didn't preorder or reserve one on launch day. Anyway, I love the phone, display is stunning compared to my 3GS. But I seem to be having problems with making phone calls. Not sure if it's the phone or my network (O2) but when making phonecalls or surfing the web on 3G I notice that the bars drop, not enough to drop the call, but five bars down to one!!!! Also, sometimes leaving the phone in my pocket, when I take it out it's sometimes "searching" and has no reception. Is anyone else experiencing this? is it my network provider or have I got a dud iPhone?