Anyone have there touchscreen stop working ?

I was just about to put the dash back together and noticed I could no longer use the touh screen, NO RESPONSE HITTING ANYTHING.

dead !!!!!!

Pioneer tech support say;s the unit is defective

The company I purchased it from wants to have there people test it so I sent it back to them

Sounds like I have a fight on my hands with Electic Mart where I made my purchase with there 1 year waranty and they say Pioneers tech support not so good and will test it at there place