I have a 2006 MacBook Pro that I've cared for lovingly and tenderly since I got it.
Until recently, when a speaker fell off a shelf and gave the edge a grimace. I tried to straighten it out using I won't tell you what (a flathead screwdriver), and then decided just to let it be before I caused more problems. The only thing that was really affected was the CD drive, which I can basically live without.
That is, until...I bought an off-brand replacement battery. The new battery seems slightly ill fitting. It pushes the mousepad up from underneath, just a little. The combo of pushing up in the middle, and crunching down on the right side, has created a terrible hassle. I think without the other issue, the battery wouldn't cause this problem on its own.
If my wrists hit the top of the laptop even slightly, the cursor clicks off everywhere but where I want it. Entire emails or pages of writing get highlighted and delete themselves. Or the cursor takes off and lands somewhere else on the page, and then the new words I'm typing interrupt existing words, so I have to delete a bunch and retype. Cntrl+Z has saved mostly everything so far, but typing anything (including this post) takes twice as long. And I can't just relax. I have to hover my arms all weird so nothing but my fingertips touch the computer.
Pic attached. Any ideas? Should I employ a wrench? Yikes.