Comment 11 for bug 993655

Sorry if I'm not supposed to post here, just thought my circumstance might help.

12.04 fresh install with Cinnamon, Unity and Gnome desktop, it happens on all desktops.
I have a usb creative fatality headset and microsoft usb trackball mouse. I haven't notice any particular time the problem happens, my headset is always pluged in. Left click, right click stop working all together, have to Ctrl-Alt-T then sudo reboot, sometimes 2 or 3 times to get mouse to start working. Will keep headset unplug to see if this changes anything.