I had "alien" text shadows appear in a presentation I published recently. After repeated failures to correct, I discovered the presentation's slide master contained text "layout" graphics that were pasted over. Didn't appear when the PPT file was played, but showed when I published in Adobe Presenter. All I can suggest is, check your PPT master. May be some stuff there that needs to be removed.
wardofwards - I had a look at the Prezo at the stipulated website and could not see anything wrong. In fact I thought it was a brilliant interview and think a lot of people could learn from it (well done). What am I missing? Maybe you can be more specific and tell me what am I supposed to look out for? Otherwise GOOD JOB!!
I have had this exact problem- you are not going to like the solution. <G>
Short answer - rework your template master presentation in powerpoint to be less complex graphically.
For me it looked like slides are stacking on top of each other, sometimes participants see this, some times they don't.
The core problem-
If you use anything as a background image or multiple images in your slide masters starting in power point, the presenter/converter will get confused.
I am not a flash expert- but I think it has something to do with layers as templates for other slides.
Use a default template from powerpoint, with simple colors. If you want to add logo/image data put these images in small areas of the main master slide (the top one in the master view) , if that doesn't work try using single images.
Sometimes, I have seen this problem occur when transparent objects are used throughout slides. I suggest deleting any object or background that has a transperency selected or just use solid colors.