[kcknsummonstaz]

I recently ran into a problem with texting with my phone where the application won't let me type any thing. Sometimes i'll be able to type 3-4 words before it stops and i can't type anything again. I'm able to exit the SMS application but then my phone is extremely slow and i'm forced to restart by taking out the battery. This is basically happening to me every time. I'm planning to do a hard reset, but before i do, does anybody know what might be causing this?