I have a first generation iphone that has recently been upgraded to the 2.2 software. When I try to shut it down, it looks like it normally is about to, then it suddenly just starts to reboot right away every time. I tried doing a restore and that didn't help. I'm not sure if this is a result of the 2.2 update or not because I rarely shut the phone down. Has anyone ever heard of this or have any ideas? The speaker is also having some distortion issues that I just noticed (possible hardware failure happening? or trauma that happened to the phone I was not aware of?) Thanks for any input.