My 2008 unibody Macbook Pro has a loose screen. Loose and wobbly and drunken at times. It’s been chugging along loyally for over three years, and in Internet time, it’s like a Regis Philbin. But as we all know, old folks can get wobbly. No shame in that — but it happens. The whole screen/monitor (the part that flips up) developed about 2 cm of back-and-forth play, and it felt like perhaps the hing