Sidekick contacts not showing up in texts

Im rather new to owning a sidekick, but know my way around them pretty well. Whenever i receive a text, it will be from "+1516-***-****" No contact will show up. But if i decided to reply to that, it will show the contact in the To: section. Any ideas?

Umm, idk it probably needs to load, or reset the phone!
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Do you have a sidekick data plan? This kind of thing will happen if you do not have a sidekick dataplan. What you need to do is save all of your contacts to your sim card. Then go into your contact list and press the menu button, select the option to import contacts from your sim card. After all of your contacts have been imported their names should start showing up in your text messages.