Some issues with Presenter 8

Hi

I have some issues withe Presenter8:

Slide durations:

I want to set the duration to 0 sec when in the slide manager to the slide is set to "Advance by user" > "Yes".  (It can be set to under 0 sec, but it does not work, the slide duration is never less than 0.5 sec.)

Swf files:  

I have SWF files with audio and interactions, it appear different depending on how i choose to start the page (after i have published the course). Sometimes it starts as it should and somtimes it does not. I can't find out what triggers this. In "manage Swf" have ticked "Control using playbar"...

Quiz:

I also have quizes in my course, I have audio to each question and responce at each answer. The audio at the responces con not be stoped until the audiofile ends, the audio is still running if I click any other buttons or click next.

Any suggestions?

Thanks

Anne S