Hello all, My problem is that when I try to boot to the XP installation disk, I get the very fast, flashing, gray apple, followed by a question mark folder, followed by the ghostbuster symbol, without the ghost. The disc keeps spinning, but the windows installation screen never appears. I'm new to installing windows with boot camp. Anybody know what I'm doing wrong? Thanks in advance. By the way, I'm using a MacBook Air with and external DVD drive.