Congrats on your new device! Text messages are important, and I know that it can be frustrating when you are unable to view them. Let's get this fixed. What happens when you click on a message? Any errors? Did you attempt the soft reset on the device offered above http://vz.to/19NsNMs? Keep me posted
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If you are saying you are unable to view because the font size is too small, here is the way to remedy that.
Go into Settings and look for "Ease of Access" Adjust the font size right at the top (see attached)