Problem solved. Must have been the good luck of Creative Cow rubbed off on my machine! I re-installed FXFact, then used the “uninstaller” inside the app. Wiped every FCP-related folder (except projects of course) and re-installed FCP. When I started up FCP, Looks loaded! I then re-installed my old FX Factory and all appears to be in working order. Still have no idea why something screwy from FX Factory would have prevented a Magic Bullet plug from loading…