Hi, I have a MBA 1.6 and it's plugged into my ACER 22" LCD. Sometimes when the macbook is asleep and I wake it up the air's LCD turns on but the Acer wont. I have to turn the Acer off and on and then the air recognizes it and sends video to the acer. I used this acer with my MB for a good year and never had this issue. Any thoughts?