Why is my Launchpad freezing or glitching in Ableton?

This could be due to you having installed older drivers for the Launchpad. Please ensure you have downloaded the latest drivers from our website:

http://www.novationmusic.com/support/launchpad/

Also it is probably worth checking you have the latest version of Ableton Live installed:
http://www.ableton.com/latest_versions

Please also check that If you have multiple controllers, when you remove the others the problem persists. If you have to use a hub, please ensure it is a powered hub like the Audiohub 2x4.