Samsung FlipShot SCH-U900

I use word all the time, but sometimes my phone just stops and won't let me finish a word or correct it! Any suggestions? My old phone also finished words for me, that is not enabled and is the only way for you to teach it a work is to switch over to Abc and type it in?
Also, how do I get rid of all the crap when I recieve a message? I want just the message, not all the callback numbers, time, etc.
Thanks!