OK, this may seem petty, but ... I bought the Droid for use in a new business venture. I'll use lots of minutes a month, and the unlimited data will be heavily utilized. But I'm not interested in texts. Just not a texter. On my old phone (old job, same business), I would receive maybe 5 texts a year and send none. So within a few days of getting the business set up, I started receiving text messages that are trying to market services to my new company. $0.20 each isn't such a big deal, but it's very annoying. How can I put a stop to this?