i can't find any help for this. i used redsn0w to jailbreak and unlock my 2g iphone to upgrade to 3.0 it works for awhile whenever i have to restart my phone after using winterboard, it freezes. i then try a hard reset (hold power and home button) then it restarts. but it gets frozen on the apple logo, then a little later then busy circle comes up. it continues to restart itself and never gets out of it......any ideas?