I am on Prepaid plan with Samsung Gusto 3. The phone is launching Internet automatically, and then turns on and off sporadically even if I am on a call. I hit the power button, but nothing happens unless I reboot. That helps about 40% of the time, for a while. It seems to be worse after I have fully charged the phone. Can I turn off the Internet feature? While on the Internet, I only see usage of about .01 MB per session, but it is very annoying when my calls keep getting dropped. Other than that, the phone meets my needs perrfectly.