I just found my Vaio touch screen stopped working. I bought the pen for touch screen but it never work. Recently I have not used the touch screen for quite a while but noticed this morning it has stopped working. I called Sony customer service and found the laptop department has gone since last year. You have to pay $99 to get an answer! Model number is SVP13215PXB. I have it for 2-3 years.
I have tried to clean the screen, uninstall the device and restart, but still not working!