I am a recent convert from BB. Here is my question. My BB was smart enough to use the strongest signal available when sending sms, or mms. Meaning if my wireless provider signal was not strong enough, it would automatically use the wifi signal. Please help me if I missed a setting on my vibrant which would allow my texts,pics,etc to be sent via the strongest signal and not just bounce back as undelivered. Otherwise, I love my new phone.