I just picked one up cheap, and I'm using it with my go-phone account sim card. The problem is, I can't figure out how to lock out the stuff I don't need like.. WEB, MediaMall, Cellular Video, and Email. I don't use that stuff, and when I accidentally activate it, it costs me money. So far I've spent like $2 today in $.10 increments just fiddling with the phone. Does anyone know how to lock these controls?