The only program running was Titan, and left & right clicking anywhere did nothing to bring the keyboard back. I will keep my eye on the task manager the next time it happens, to see if something else is trying to run.

Has anyone else been experiencing issues with the keyboard on your laptop not responding randomly? I can't seem to pinpoint an exact cause of the keyboard not working - but is a big issue when trying to set legends. The (sometimes) fix is to toggle caps lock on and/or pulling up virtual keyboard in ...