Hi, I recently upgraded my 2011 Mac mini to a 2012 Mac mini Server. I was using my Apple LED Cinema Display 27" with the 2011 model with no problems at all. But now, using the server, I find that the screen flashes bright white for a split second when waking from sleep. The image quickly returns to normal and is fine after that. Has anyone else seen this? I've tried resetting the Pram but it made no difference. Any other suggestions on what to try to stop this happening? Thanks.