Just got a brand new Satellite c55-c5241, took it out of the box and started it up. From the first moment I started trying to set my password, etc, some of the keys don't respond, and have to be tapped many times before the letter (or number) shows on the screen. And it's not always the same key...but c, e, g, h and spacebar seem to be the worst. Have had this 5 days, thinking about returning it, but would rather find a solution. Please help!