I was recently caught in a thunderstorm with no umbrella while my laptop was in my backpack. Since then, when I press keys on the right side of my keyboard, it registers them as several keypresses. For example,
Backspace is interpreted as
n is interpreted as
My laptop is not under warranty, and I do not want to pay for a diagnostic. I am prepared to purchase and install a replacement keyboard, but I want to be sure my symptoms are indicative of a problem with the keyboard itself, rather than some deeper problem.
Note: When I plug in an external keyboard, it works perfectly.
Edit: I replaced my keyboard, and still have the same symptoms.