The only thing that worries me about all this is that you had said that you have to tap the screen 15 rimes. You should only have to tap the 4 corners and maybe the center and be done. If this keeps happening call verizon because you most likely have a defective unit (it happens). They should have no problem replacing it if that is the case
Well I've experienced the same. I'm now on my second HTC Imagio. The first did the very same. I sometimes had to go around the screen to many times to count. Most of the times I just got too frustrated and pulled out the battery. The first one the screen suddenly died ... accepted no input! My second (refurbished) replacement has exactly the same behavior.