10.6.3 causes rotation to be broken

[MAOJC]

Originally Posted by MCV

You should consider rolling back to 10.6.2 then, especially if your project work depends on it. To be honest, though, I wouldn't be using beta software on a machine I'm doing critical project work on. Nor would I be updating anything once I know the machine is at least functioning stably. You're just asking for trouble.

timemachine is your friend in this instance!