(I thought I answered this before. Perhaps on another thread...)
Christine, I tried the JB Weld. It didn't succeed. Closing the welded lid just once produced enough torque to break the "weld" (made of brittle epoxy) and mortally damaged my LCD screen in the process.
Rather than going through all that again, I decided to transform my MBP into a desktop version. I cut away the top case (being careful to preserve a lead that apparently made the computer sleep when the case was closed and another that may be a wireless antenna). I then filed off the hinge's sharp edges.
I was left with the operational 95% of my computer contained in the bottom half.
I connected to the chopped MBP a 23" Apple HD Cinema Display I had sitting in my garage, installed Shades (a free display-control application downloadable at http://screenshade.en.softonic.com/mac/), and clipped to the display a cheap but very effective Logitech C270 webcam ($15-$25). I can fine-tune control the camera with eCamm iGlasses (http://www.ecamm.com/mac/iglasses/, $20) or simply use it out of the box.
Voila: my kludged "new" desktop Mac is a better workstation than it was a laptop! The screen is easier to read or watch, the computer runs cooler (important in the desert, where I live), and the stability of the keyboard in this configuration is much greater than it was. Surprisingly, the sound is unaffected at all or maybe even a little louder than it was before.
When necessary, I have an MB Air on which I can take my computing with me. But I'd much rather work on my desktop Mac.
Admittedly, this is a radical solution, the "joke solution" in many somber explanations of how to fix your broken top frame. True, you may not want to give up your machine's portability or former good looks. Or, you may not have a display to substitute for the screen. But if you don't care about the former and do have or can acquire the latter, I can assure you: this solution works great. And it may prove the only way to preserve your Mac. Maybe you can safely install another frame yourself, but unless you're a tech with experience, I wouldn't count on it. Commercially, it can cost up to $500, the cost of a replacement 2009 MBP. And what if the new screen later breaks, just as your first one did?
At least now you know: your Mac can have an afterlife, can be reborn, even if you accidentally murder it while trying to save it.
Sincerely, Bob Jacobson (aka bobbissimo)
PS If you do go this route, be very careful with the LCD when you cut away the top lid. An intact LCD screen, even one this old, can fetch you around $100 on eBay. A broken one, like mine, zilch.
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