Sorry you have been having so many problems.I have been developing using flash and Lectora for quite some time and have preloaders built into my flash.First of all I only publish to HTML or SCORM. I do not use Lectora to preview anything because it does not work for advanced Flash. I only preview the index.htm or I use ADL test suite or Reload to test SCORM content.I have used both the native Lectora "animation" object and I have written my own object embed with custom html. The only problems I have experienced is with the directory structures that Lectora sets up. If I embed using my own code I "include" all the files in the title (.as, .swf.....) and make the embed tag point to the first .swf.The only other problem I have experienced is with SCORM. In that it takes a few seconds for the API to initialize then for flash to be loaded if it is on the first page. I always make my load sequence start a few frames into the movie to get around this. Hope some of that helps.SP