HP Pavilion zd8000 Notebook "type skips missing letters" Questions

...type I hit all the keys but when I look at the page 1/3of the letters are missing and spaces aremissing too. Help pls I also had this very frustrating problem and found that removing the battery that ...

...letters while I was typing. I reinstalled the driver and I eventually reinstalled windows but it kept dropping keystrokes. When I was typing in my windows registration key after the fresh install it ...