Following an upgrade from 12.10 to 13.04 via a USB drive, the left and right buttons on my laptop touchpad are not working at all. The touchpad works and I can guide the cursor as needed, but cannot do anything with it. I have tried plugging in an external USB mouse but it also will only guide a cursor and the buttons are non-functional. I can get a terminal open via keyboard shortcut and that appears to currently be the only way I can control the computer at all. It's a Dell Inspiron E1705 laptop. You never realize how much you use your mouse/touchpad until you can't. Any suggestions would be appreciated!
Edited: Hard reboot fixed problem.
Edited: Hard reboot fixed problem.