I just replaced a LCD screen on a alpha Taz7 for not registering any touch inputs. I took it up be checked by Mark and he confirmed that there was something wrong with it but could not fix it. Replaced the LCD screen and everything seems to be working now on the machine.
Do we want to consider testing every LCD screen as discussed in T4065? This is more of a question for beta and if we do see any more fallout from the LCD screens.