Earlier this week, I installed routine updates to ubuntu on my main work computer. Unfortunately, there's a huge bug in the latest update: switching windows using alt-tab crashes unity. This makes it impossible to open new applications -- or even shut down.
Since alt-tab is a deeply ingrained reflex for me, my computer is basically unusable as long as this continues. The bug has been reported here, but I don't know how long it will take to fix. In the meantime, I still have work to do.
Is there any way to rollback the latest set or two of updates so that I can get on with my life? (Alternatively, if anyone knows of a fix for the core bug, that would be great too.)