I was very close to dumping Ubuntu. This has so far been the best Desktop Linux distribution I ever worked with, and I really liked the ease of use. But one day, something broke. It didn't allow me to switch between keyboard layouts any more! As I often have to compose texts in German, this is a big deal, and quite a problem. I was exploring the various forums for months! I found quite a few people who had the same problem, but nobody with a solution that actually worked for me.