My laptop keyboard and mouse keys are starting to wear out, but one problem seems particularly curious. The left click on my touchpad mostly works normally, except in a few situations. In Chrome (but not IE), when I click on a tab, the tab closes. I'm not clicking the X or anywhere near it. Also, when I click on Chrome's back button, the previous page opens in a new tab, rather than it sending me back within the same tab. And it's not just Chrome. Sometimes when I click on a program window, Windows "unfocuses" that window, so the window title bar turns a lighter shade, like I've clicked on something outside the window.
I'm wondering if Windows thinks I'm holding down a key when I'm clicking my mouse? I've tried to find info about Chrome that would suggest what would make a left click behave this way, but I'm stumped.