I recently bought 23" Apple Cinema Display Aluminum to connect with my MacBook Pro. When I put my Pro in clamshell mode, I noticed that the connection to airport is very slow, even though I see that I have full range on upper right screen, compared to when I open the lid. I read that the antenna is on the lid so the better connection is when the lid is open than when it's closed. Is there a way to get better connection when closed? Thanks in advance