I have a very nice set up now at work with a Retina 15″, and a Thunderbolt 27″ display. But the single menu on a single monitor is not so nice. SecondBar adds a copy of the menu to the second monitor. I find SecondBar from http://blog.boastr.net/ very handy and recommend it. Thanks! Remind self to drop the fellow some quatloos.
I seem to be getting these every couple days to a few times a day with my new Mac Pro Retina. Some claim Mountain Lion fixes the issue, and that the issue has to do with switching graphics drivers from internal to external. I don’t know about that as I did not think the built in Intel driver could run my external monitor, and the issue is happening with the monitor. I also do not want to upgrade to Mountain Lion until the battery usage issues are worked out.