Happened to me twice in the last couple of weeks since I installed UD9.8. Not sure what is causing it but if it keeps happening I will have to choose a different ROMThis has happened to me more than a few times. I am using the DroidMod also. I do not use a task killer. I did however use AutoKiller. Thinking this shut off some process that just killed the phone, I uninstalled it yesterday. I put a full change then set the alarm. Went to bed and when I woke up (before the time my alarm was set) I checked the phone and it was off. I had to pull the battery to get it back on. Well that is two programs that are not causing it. I'm lost. Will delete more programs to try and figure this out.