I need help with

I am a first person shooter fan,and I am playing Halo 3 more than other games.

That being said, I just bought a 50 inch TV andIT I IMPOSSIBLE FOR ME TO SNIPE !

Is this normal ? Or it may be my TV's refresh rate ? I am going crazy right now. Since I bought my TV I suck so much @ halo that I feel like it is my first day learning 2 play

Advice please

I am going to have to go back to my 30" and just use the other just to watch TV

It has been very difficult for me specially @ sniping man, this is so frustrating. I even think I see the Halo characters oving different.

:( It is tough man