Since yesterday, I've been unable to click with my first-gen MacBook Pro. The system doesn't freeze or anything, and the trackpad itself and keyboard still work. I can't pull up the Dock. When I plug in a USB mouse, the same thing occurs: I can move the cursor, but not left-click (I can right-click with the mouse). I searched everywhere on the net, and only found one mention of a similar issue, here. Since I'm no longer under warranty, I opened it up to see if a cable had come loose or anything, to no avail. It's got me at my wit's end... it's almost worse that I'm able to move the pointer, since I can't click anything! The local Genius Bar is full up for 4 more days (lousy holiday season!! ), does anyone have any suggestions in the meantime?