I have a acer 5538...Everyday I get on my laptop and sometimes im typing in a password or typing in something and the only keys that work is the backspace and the spacebar the k will copy a tab l,o open a file other keys will do other things if I click a link or a video it will start in a new tab and I know im not holding anything down for sure.Is there anyway to fix this and is it just my laptop or do other people have this problem?