I recently posted about graphics issues I've been experiencing with the Katana model in the subject title. Now I'm getting keyboard trouble. Random letters not appearing when the key is pressed, sometimes using Ctrl V doesn't work (I literally had to switch to uppercase just to get that v to post.) The letter 't' is particularly troublesome and requires several presses before I can get it to paint to the screen. Are there any resources I can follow to disassemble the laptop so I can remove the keyboard and clean it?