You are welcome hello, yeah, you can find cheaper digitizers on e-bay, if i remember my friend found for 40-50 $ on e-bay with tools for setting up digitizer and pack with all things what you need to change your digitizer!
unfortunately in most of cases it's hardware failure! It was in my case, after sending in official htc service, they changed my display - digitizer, and now phone works like a charm!
It's very bad if you see same symptoms, not responding screen, and heating of phone, definetly you have hardware failure! No solution for this problem, you can try with MTTY method, before sending phone to repairing service, use button search for thread with title mtty method, or something like this in Diamond forum!
I'm wondering if you still have the screen alignment issue after sending the phone for repair? Is this in fact a hardware problem? I'm beginning to see the same symptom on my phone. Please let me know if you have found the solution.
what exactly you need? GPS or gprs, i'm not sure what about you talk? If you think about gps software and maps, write me on pm, what software you need - brand, tom tom , igo, garmin ?