touch screen off w/4S

If you can recreate it, they should.

I've no problem with mine, I've actually found it more sensitive and responsive than my prior devices.

 

It would definitely drive me crazy, so I don't blame you.

 

Post up and let us know what the results are at the Genius Bar. I'm curious to see how they address your issue, because the way that I understand capacitive screens, you shouldn't have to re-calibrate them for accuracy. Their touch grid is hardwired into the screen, and touches are registered by the change in capacitance caused by where fingers (or other materials that cause a change in capacitance) touch.

 

Maybe a different screen protector? This can effect you and your phone.

 

If you want to know for sure, and this would be a good way to prove it to the Genius bar, is to download a free drawing/painting app and use it. If the screen doesn't match your finger exactly the calibration is off. Otherwise, you are just being careless.

 

I'm having the same problem. Whenever I try to activate Siri in the text messaging app, I always press the spacebar no matter how accurate I think I am.

 

It might also help to try some other iPhones, at the Apple store, and see if you have the same problem with them, or if they track your finger better. If the latter, then there probably is a problem with your phone.