Does anyone else have an issue with screen randomly going blank whil on a call or accessing apps. Every so often while I'm on a call my screen will go blank. I can still see home, multi windows, and back button but screen is just black. Before anyone says anything; no my screen timeout isn't activating and no my phone is not locking itself. I have to actually tap either one on 3 afore mentioned buttons to get display to show what it should.
