Comment 3 for bug 468223

A reboot did not cure, but connecting an external mouse did. I've been clicking around on Web sites with the external USB mouse and I've been having no problems. So it must be related to the touchpad driver. By the way, it doesn't matter how I try to click with the touchpad: there are two left mouse buttons and you can also tap the touchpad, and all three have the same effect.

Here's something else: Operating the touchpad while having the USB mouse connected still causes the bug to manifest itself. Also, any of the three clicking techniques can cause the left-button mouse lock-down, and for me the lockdown is not cleared over time; but pressing a different button from the one that locked the mouse down will clear the click. So for example, if I cause a left-button mouse lockdown with the buttons right under the spacebar, I can clear it with a tap on the touchpad or a tap on the buttons below the touchpad. But I can never clear it by pressing the same button again. I also can't clear it by pressing the mouse button on the external mouse.