I have Gateway NV53 Series and recently it stoped to work - not respond to nothing and just stay on with the capacitive touch key as in the follow picture . What does that touch key mean(the lighted key) ?
It means your numlock is on - I don't think its a capasitive key, just an indicator lamp. The actual button should be somewhere near your delete key or keypad cluster. The only picture I can find of the keyboard is horrid but I've highlighted one possible key