I have an HP Pavilion g6 laptop that I've had for about 3 years. It was fine up until today. When I am typing, my enter key doesn't work at all. When I'm in a browser and I press the enter key, it creates a bookmark. When I press the spacebar, out of nowhere a bunch of random letters will appear where I am typing. I can't use the up and down arrows to scroll down pages like I used to be able to. I did not spill anything on my keyboard so I don't know what could possibly be wrong with it.