I have an Aluminum Powerbook that does not have the trackpad scrolling feature and would like to have it. I have read that it is mainly a hardware issue and that the powerbook can not be upgraded through a firmware fix. Is there any possible way I could buy an upper trackpad casing for a powerbook that has the scrolling trackpad and place it on the one that doesn't?
I would think that since it is just a hardware issue, it would be easy enough to just switch out the casings or am I missing something that I should know about before I attempt this?