Texts sent to the wrong person?

[mcharles18]

I'm new to Android Central/Android phones. I've had my Fascinate for about 3 days now and since then, the texts have been screwing up. When I press the "Messaging" button and it opens up my conversations, it will say I'm having a conversation with Heather for example. When I click on the conversation and actually open it up, it will say the text is from a totally different person even though the actual replies are from Heather. But if I try and reply to the text, it will send it to the other person!! Any idea would help please!!