There's no trick to using LuminicBox with *Flex 1.5*. In fact, download the latest Arp from SVN and it's two lines of code: Log.initialize(); Log.it ( "hello"); Let me know when your AS3 version is ready Richard -- would love to use it! :) Aral JesterXL wrote: > http://www.ifbin.com/news/2005/11/flex-15-using-luminicbox.html > > Not OS, though.