Can't Use Two Finger Click on Your Macbook Pro? Try This...
"In the release version of Mac OS X 10.7, there is a bug that prevents secondary click working with two-finger click on the Macbook Pro 4.1."
Image Credit: Notebooks.com
According to the instructions, the only way to fix this is to go into terminal mode. In Terminal run the following:
defaults -currentHost write -g
com.apple.trackpad.enableSecondaryClick -bool YES
Of course, with anything in Terminal, be very careful.
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