Phone is being stupid. Samsung Gravity 2?

confused.

New member
Alright.
I have a T-Mobile Samsung Gravity 2.
It was working fine all day.
Then all of a sudden it started freezing up every other time I touched it.
And when I try to send text messages, they don't send. (Yes, I do have service. So that isn't the problem.)
And for some reason, it doesn't dim either.
I don't know what it's called... You know when you don't press anything for like a minute and the screen turns black?
Yeah. It isn't doing that. It just stays on.
Does anybody know what the problem is, and how to fix it?
Thanks in advance.
 
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