I've got a strange issue with a relatives intel Macbook Pro (pre-unibody). I'll lay it out in easy to read, bullet point goodness. Primary and secondary click for the button under the pad doesn't work (and doesn't click - jammed?) When I've tried using some mice, the primary click doesn't work, but the secondary works. I used "Share Screen" from another computer, both left and right work fine I've booted from the Snow Leopard (10.6.3) disk, both left and right work fine from a mouse. The button still doesn't work. I've done all the Disk Utility repairs. I suspect the button on the pad may be stuck in the click position which may explain why Share Screen works but it doesn't explain why it worked booting from the install disc. Any thoughts? Thanks in advanced. Chris.