I'm hoping someone has had this experience and has figured out a work around... Since upgrading to Lion, I can no longer send my display to my NEC LT280 network projector. It connects fine and the cursor shows up, but against a black screen. Changing resolution or colors does NOT work to display properly. I contacted NEC who say it is a Lion and thus Apple problem. I see nothing posted anywhere on Apple's support pages and so am hoping one of you gurus can help troubleshoot this issue. Thanks.