Screen Issues Any Fixs???????

So currently im on my 4th touch, v7 firmware already installed, just got this one sent, now before I had it activated with my account the screen had perfect touch accuracy with v7. now the moment it was activated (had to go into the store due to with the self activation not working because of the insurance was flagged) the screen went to crap. Now this was one of the main issues why I had verizon send me another one, the 3rd touchs screen went to complete crap right after it was updated to v7. Im wondering if there are any known fixs or hacks, what ever lol cuz the touch is prolly the most legit cell out but comes with alota downsides. Ive already tried switching to another cell (samsung intesity) but its still not the same as how good the functionality aspect of the touch is. I don’t know im soo sick of going to verizon an getting replacements sent which is a 45min drive away