Please, people tell me what to do.
out of sudden as I was using my 770, the touch function stoped working. I switched off and on the device but it still doesn't work.
Everything looks working properly (buttons work, screen displays OK) except touch. I cannot touch anywhere on the screen.
Below the screen surface I see some liquid like water.
is the screen broken? do I have to change the screen or any other part?
Just to tell you is that those days are very hot (108F / 42C) and humid in my country and I use the air conditioner in that room I used the tablet. is it possible the screen is not broken and the liquid is from humidity?
I am asking here before contacting nokia because internet tablets do are not offered by nokia in my country so they will not know what a tablet is.

thanks for your replies

edit: just posted a photo to show how it looks like