After I installed Ultrasn0w 1.2.1 to fix my signal bar issue (as well as unlock), my iPhone 4 is facing some huge battery drain. Prior to installing Ultrasn0w, I would lose only about 1-2% per 8 hour. Now I am dropping at about 10% per 8 hour. What is up with this? My phone IS on AT&T. Is there any other way to FIX the signal bar issue without having to have ultrasn0w running?