Installed it this morning and installed fine. Rebooted opened display prefs and I didnt see an option for rotation.
Held down CMD+OPTION+SHIFT and clicked the display prefs and I was able to rotate my monitor. Worked for a few hours and then I got a kernal panic. Now the display is black and wont be recognized at all.
Here is a dump of what happened:
http://pastebin.com/xzzgJEzW
Let me know if you need anything else.