I frequently get an error message popup (in the home screen's pull-down notification bar where you get icons notifying you about new emails, text messages, etc.) which says, "Browser Storage Full - Click to free up some space.." What causes this? What sort of data will be deleted if I assent? What will happen if I don't? It's not like I've surfed very much, so I'm surprised much data could possibly accumulate. Besides, I've only had my Droid-X three days, but this has already happened several times.