I have an issue with my keyboard space bar starting two days ago. Every time I press the space bar, I get a 8 and a space. All the other keys are good. And this problem never occurs before. My computer was just bought two months ago. I did not change anything software or hardware and the problem just happen all of a sudden. It is causing me a lot of trouble though as I have to delete the extra 8 manually every time I type a space. Can anyone give any suggestion here? Thanks!