I just started hooking up my Rev C Air to an old external LG monitor. The plan was to run the Air in clamshell mode sometimes, with the lid closed, using the bluetooth keyboard and mouse. It all works reasonably well like this except, when the lid is closed the wifi (airport) speed slows to an utter crawl. If I use the Air with the lid open, in exactly the same spot in the office, either with the LG screen as extended desktop, or with the Air in clamshell mode but with the lid open, speed is OK again. This seems to be a known issue with some Apple laptops when the lid is closed. Anyone got any remedies or good ideas? Thanks!