No response when touching accept for incoming phone calls

[DiSFLyLaTiNa]

If someone calls me I cannot accept the phone call. As much as I tap on the accept or slide to answer it wont answer the phone call and it'll ring FOREVER!

Recently i decided to push the home button and it works, if i tap the accept and then push the home button it answers the call.

But is there something I can do to fix this?
It's unlocked with a gevey 3g sim and I'm on T-Mobile, how do you suppose I can get help at the genius bar, if that's what I might have to do?

 

[iPhoneKiller]

1- Try hard resetting the phone (Power button + Home button) release when apple symbol comes up
2. Reset all settings, this will reset all preferences on the phone. (Will most likely reset your APN settings)
3- Restore the phone as new

If this does not work I do believe that an AT&T sim card will work with an unlocked phone and just take it to an Apple Store and they should take care of you.

 

[DiSFLyLaTiNa]

^^ how do i reset all of the settings?

I will try to restore

I sadly don't know anyone that has AT&T that would be able to help me out in swapping out the phone at the genius bar..