I don't have a rotated display, but the Version: 1.8a1 (36844) alpha update now allows my 3rd monitor to be used. Previously, all I got was a black screen that flickered.
Thanks Carlo for your teams hard work!
My setup:
MacBook Pro
17-inch, Mid 2009
OS 10.7.3
Model Name: MacBook Pro
Model Identifier: MacBookPro5,2
Processor Name: Intel Core 2 Duo
Processor Speed: 2.8 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB