Hello. I just got a Droid 2 Global a few days ago, and I'm having trouble with incoming calls. Even if the person is in my contact list, their number shows up as "Unknown." I thought maybe my dad had his number set to "hide caller ID," but I've since gotten a call from someone else, and another from my grandmother - and I know my grandmother doesn't have her caller ID hidden, or even know how to hide it! Any suggestions on what to do?