no, i hadn't.It rebooted several times almost as soon i started playing with it. I noticed some had said that changing to 2G helped- but mine was already on 2G. Changed to 3G and it's been much better. It has rebooted once since when I opened the camera- but havent tried it again yet. Just installed weather, so I'll see how that goes. All in all I'm very pleased with it- although I'm finding the scrolling difficult- the bar is very thin and i keep opening things inadvertently. I'm ot used to touchscreen though- coming from an N95 EDIT- Oh and charger was dead on arrival, so I'm using my old N95 charger with the adapter. breathed a sigh of releif when the orage light came on with that I can tell you.