In the last couple of weeks my keyboard has started to act up. I am running the My Dell diagnostic program and the space bar is reading as down AND space and the down arrow is reading as down AND space. I did clean off the connectors and even replaced the keyboard and have had no luck fixing the issue.

There are no keyboard short cuts on or anything like that either. Does this mean it is a motherboard problem since everything in these laptops is part of the mobo? Should I try to open it up and see if something looks out of place? I never opened up the laptop until I replaced the keyboard last week. Any help would be appreciated.