Menu Launcher Crashes
On some laptops, after a recent update of Ubuntu 16.04, the Unity menu launcher crashes when you click on it. This is due to a bug in the MESA graphics driver. It will probably be fixed soon, but I found a solution and applied it today.
This happened with a ThinkPad L512 laptop, which uses an older Intel graphics chipset.
Here's the fix
Use a PPA to install a more recent version of the graphics driver.
Use Ctrl+Alt+T to open a Terminal window. Then use these commands:
sudo add-apt-repository ppa:paulo-miguel-dias/pkppa
sudo apt-get update
Then
sudo apt upgrade
This will get the latest driver from the PPA and install it. Reboot and now the menu will work properly.
You may need to use a Terminal command to reboot:
sudo reboot
