I live in Blanding, UT. and At&T has a contract tower in town, but from my understanding a AT&T tower down the road. My Jailbroken 3GS and my wifes non-JB 3GS go from full bars, to minimal/no bars throughout the day. What options do we have? I've heard of a software fix to force it to stay on a certain tower? Any info or a link would be appreciated!