i dunno what program is doing this..i really think its the advanced task killer..it wasnt doing this till it told me to update it last night..but every time it locks and i go to unlock it..it brings up the phone dial pad then my missed call..i keep backing out of it..but it rotates to all of those..i have to click on home which will reset and come back to the home screen..but i'm still dealing with this issue once it locks up again...anyone else having this issue? how do i fix it?